Sleep and Recovery: The Role of Nutrition and Lifestyles in Overall Health

Chronic Pain (CP) is generally known as pain that occurs on most days for a time of three months or longer. Chronic pain affects a substantial proportion of the adult population. According to researchers, the pain estimates range from roughly one in ten to one in adults with this condition. Although chronic pain can be linked to some people as an identifiable medical condition, such as arthritis or cancer, for many others, there is no specific criterion or condition to an underlying cause. Regardless of the presence of formal diagnoses, a large number of people with chronic pain can experience difficulties with sleep. The relationship between sleep and pain problems seems to be bidirectional. Nevertheless, research reports that poor sleep quality may be a stronger predictor. Another research indicates that poor sleep quality may be a much stronger predictor of pain severity than is sleep disruption. Psychological and biological mechanisms connecting disturbing sleep and chronic pain are likely to be multifactorial and complex, and are not yet fully understood. One of the contributing elements may be the physical discomfort that can cause the pain, and it can heighten internal arousal and make it difficult to maintain sleep. Sleep disturbances and chronic pain are both linked to various changes within the brain. These links involve alteration in brain wave activity, including structural changes such as reduced hippocampal volume, increased activity in limbic regions, lower levels of neurotrophic elements that may contribute to neuronal growth and survival, and disruptions in dopaminergic functioning. Further to this, chronic pain can be connected to various changes in inflammatory processes in the brain, which play a crucial role in regulating the sleep-wake cycle. According to the researcher, the reported rates of sleep disturbances among people with different chronic pain can be at different levels, from moderate to very high levels. Those variations associated with different types of sleep problems can be influenced by differences in research design (Mathias, Cant and Burke, 2018).

The Role of Sleep and the Immune Interactions

Sleep, in general, is an active biological state rather than a time of inactivity, in which both the body and the brain remain highly connected. It is particularly associated with a characteristic posture, such as a heightened threshold for arousal, often lying down, reduced responsiveness to external stimuli, and sometimes a temporary loss of conscious awareness. The difference between coma and sleep is that sleep is readily reversible. Among the homeostatic drives, sleep timing is controlled by a second, independent procedure; the mechanism system and sleep become deeper and longer after extended periods of wakefulness. The internal clock synchronises and organises near 24-hour rhythms across a long range of physiological functions and behaviours, such as fluctuations in sleep propensity and alertness during the day. However, connections between immune function and sleep are deeply rooted in everyday traditional beliefs and experience. It is widely known that infections often lead to sleepiness and increased fatigue, and restful sleep, and is often viewed as a main factor in recovery from illnesses. Scientific interests in the idea date from ancient times, and the early twentieth century proposed that the existence of sleep-promoting substances accumulated and also dissipate during wakefulness. Later discoveries were made that certain immune-related molecules, such as elements derived from the bacterial cell wall, and these substances were shown, particularly in animal research, to stimulate the release of sleep regulatory cytokines such as tumour necrosis factor and interleukin-1β, and also to activate immune responses. Through the elements, immune activation contributes to the homeostatic adjustment of slow-wave sleep, the most restorative stage and the deepest stage of sleep.

The Immune System and the Central Nervous System (CNS)

The Immune System and the CNS are two main regulatory networks that detect environmental challenges, store data to prepare the organism for future experiences. Their functions are closely tied to the mechanisms that continuously balance internal and external demands. Physical stressors or acute psychological stressors mainly engage CNS controlled pathways but also have substantial effects on the immune system. Experts have clarified that the research within the field of psychoneuroimmunology has resolved many of the anatomical and molecular pathways underlying this mutual communication between the immune system and the brain. These interconnections circulate molecules and movements of the immune system, and occur during neural connections. Furthermore, both primary and secondary lymphoid organs receive extensive input from epidermic nerve fibres, sympathetic, and sensory, which may further support the close integration of these two systems (Besedovsky, Lange and Haack, 2019).

The Impact of Sleep on Hormones That Control Blood Sugar Balance and Hunger

Sleep plays an important role in regulating hormones that control appetite and sugar levels. The length, timing, and quality of sleep strongly affect the release of important counterregulatory hormones, including growth hormone (GH) and cortisol. However, sleep influences hormones responsible for safety and hunger, especially ghrelin and leptin. The body’s capability to release insulin and process glucose is also strongly connected to the natural sleep-wake cycle.

Sleep structure and routine are controlled by two primary biological timing systems within the central nervous system. The first is the circadian cycle, which indicates the body’s internal biological clock and functions independently of whether a person is awake or asleep. The circadian routine is an internal biological process that follows an approximately 24-hour timing. It is managed by a group of brain cells located in the hypothalamus, which is called the suprachiasmatic nucleus. These are important because they can produce circadian signals even when isolated, which shows that their circadian cycle does not depend on communication with surrounding cells. The maintenance and generation of these biological rhythms rely on several clock genes, such as per1, per2, per4, cry2, tim, clock, B-mal1, and also CKIε/δ. All these genes work together through complex feedback procedures that manage gene protein production and expression, helping to continue stable daily biological rhythms.

The influence of sleep pressure and circadian rhythms differs depending on the hormonal method involved. Experts have shown that growth hormones (GH) are largely regulated by sleep-wake homeostasis. In men, the most compatible release of GH occurs soon after falling asleep, especially during deep sleep stages known as slow-wave sleep (SWS), when brain slow-wave activity is at its highest. Studies including both older and younger men demonstrate a direct relationship between the level of GH released during the night and the amount of slow-wave sleep. Additionally, GH secretion is remarkably reduced or probably completely absent during periods of sleep deprivation. Therefore, this relationship is most Cortisol, on the other hand, follows a different pattern. Cortisol levels normally peak in the early morning, gradually decline throughout the day, and reach their lowest point during the evening and early nighttime period, often referred to as the resting or quiescent phase. During the night, Cortisol levels begin to rise again due to the body’s internal circadian rhythm. Changes in the sleep–wake rhythm have only a small impact on the overall cortisol. This may cause a temporary decrease in cortisol secretion. Waking up, whether at the end of sleep and during the night, can trigger a spike in cortisol release. Cortisol regulation is primarily driven by circadian rhythms, but its effect from sleep deprivation can still occur (Leproult and Van Cauter, 2010).

Nutrients That May Help Improve Sleep

A large survey of over 4,500 people was carried out to examine the relationship between sleep patterns and various nutrients. They identified that difficulty falling asleep was strongly linked to deficiencies in calcium, selenium, and dodecanoic acid, including alpha carotene and higher levels of hexadecenoic acid. Sleep shortage was linked with higher salt intake, lower carbohydrate consumption, and also deficiencies in butanoic acid, vitamin D, and noted with higher hexanoic acid and increased body moisture. Non-restorative sleep is associated with low calcium, less vitamin C, more cholesterol, and butyric acid, and also with higher moisture and less plain water intake. Although daytime sleepiness was linked to higher theobromine intake and lower water consumption, increased moisture and lower potassium levels. Vitamin B plays an important role as a coenzyme in energy metabolism. They are required for the production of particular neurotransmitters and neurohormones that regulate sleep and the circadian rhythm. According to research, vitamin B6 deficiencies may contribute to sleep disturbances and psychological stress, and this may make vitamin B important to prevent insomnia. Vitamin D deficiency may increase the risk of obstructive sleep apnea by affecting chronic inflammation and airway muscles. Vitamin A, delta brain oscillation, and neural function are crucial for healthy sleep patterns (Sharma and Dr Shubha, 2016).

Researchers indicate that using Vitamin C and E is seen as safe to reduce symptoms, especially for patients undergoing hemodialysis. Vitamin E plays a crucial role in supporting memory processes and helps to ensure adequate intake. Minerals, including selenium, iron, and zinc, are critical for sleep problems, but iron has been linked to fatigue, poor sleep, and learning difficulties. Studies show that in children with autism spectrum disorder, iron supplementation may improve restless sleep in 77%. Selenium may support brain activity and may also help regulate sleep, as low selenium levels have been linked with difficulty falling asleep (Sharma and Dr Shubha, 2016).

Omega-3 fatty acids in DHA and EPA found in fish oils are necessary for brain function and overall health. Fatty acids have been linked to fatigue, depression, and poor attention, and low intake of these fatty acids may also influence sleep. Studies suggest that children who don’t intake fatty acids in their nutrition have less slow-wave sleep.

Magnesium is linked to restless leg syndrome and insomnia. Foods rich in magnesium, including bananas, avocado, seeds, beans, tofu, leafy greens, and whole grains, may contribute to better sleep. Potassium may support muscle relaxation and nerve function, and it is abundant in citrus fruits like oranges and lemons. Calcium is essential for melatonin production, the hormone that regulates the sleep-wake cycle, and acts as a natural relaxant. Sources include dairy products (milk, yogurt, cheese), nuts, seeds, dark leafy greens, tofu, and soy milk. Low-fat dairy products provide calcium, protein, and vitamin D, supporting blood sugar balance and satiety. Whole grains, fiber-rich foods, and plant-based oils contribute to digestion, heart health, and may help manage sleep apnea symptoms and weight (Breus, 2013; McLaughlin, 2013).

Milk, especially warm milk, is a traditional remedy for insomnia, as it can boost melatonin production and help calm the brain, supporting a healthy sleep-wake cycle. L-tryptophan, an essential amino acid found in certain foods, also plays a role in promoting restful sleep.

Learn more about sleep and health from the National Sleep Foundation.

Explore nutritional guidance for better sleep at the Healthline Nutrition & Sleep Guide.

For research on sleep and chronic pain, visit the NCBI article on Sleep and Chronic Pain.

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Medical Disclaimer: I am not a medical professional and this article is based on personal research and experience. It is for informational and educational purposes only. Please consult your doctor for advice or a qualified healthcare provider before making any changes to your diet.

References

• Besedovsky, L., Lange, T. and Haack, M. (2019) ‘The Sleep-Immune Crosstalk in Health and Disease’, Physiological Reviews, 99(3), pp. 1325–1380. https://doi.org/10.1152/physrev.00010.2018
• Leproult, R. and Van Cauter, E. (2010) ‘Role of Sleep and Sleep Loss in Hormonal Release and Metabolism’, in S. Loche et al. (eds) Endocrine Development. S. Karger AG, pp. 11–21. https://doi.org/10.1159/000262524
• Mathias, J.L., Cant, M.L. and Burke, A.L.J. (2018) ‘Sleep disturbances and sleep disorders in adults living with chronic pain: a meta-analysis’, Sleep Medicine, 52, pp. 198–210. https://doi.org/10.1016/j.sleep.2018.05.023
• Sharma, R. and Dr Shubha, D. (2016) ‘Nutrients Helpful To Cure Sleep Disorders’, International Journal of Science and Research (IJSR), 5(9).

Understanding the Differences and Benefits of the Veganism vs. Vegetarianism

Understanding the Differences and Benefits of Veganism vs. Vegetarianism

Fresh blueberries are a nutritious option for a vegan diet, packed with antioxidants, vitamins, and fiber. Including them in your daily meals can support overall health and wellbeing.

A vegan diet is associated with plants such as grains, nuts, fruits, and vegetables. Those who call themselves vegans do not eat any food that comes from animals, including eggs and dairy products (The vegan diet, 2022).

Healthy Recommendations for a Vegan Diet

• Healthy vegans need to eat 5 portions each day of fruits and vegetables.
• Include starchy carbohydrates such as rice, pasta, and potatoes—ideally whole grains where possible.
• Choose lower-fat and lower-sugar options by consuming fortified dairy alternatives such as yogurt and soya drinks.
• Eat pulses, beans, and other protein sources.
• Include nuts and seeds rich in omega-3 fatty acids, such as walnuts.
• Use olive oil in small amounts.
• Drink plenty of fluids, up to 2 litres per day.
• Ensure adequate intake of vitamin D, vitamin B12, iodine, selenium, calcium, and iron.

The Effect of Healthy Vegan Diets

Vegan diets are usually higher in vitamins C and E, folic acid, and magnesium, and lower in calories, cholesterol, and saturated fat. Experts have found that vegetarians and vegans enjoy a lower risk of cardiovascular disease, type 2 diabetes, obesity, and certain cancers (Craig, 2009).

Plant foods—especially fruits, vegetables, and whole grains—are linked to reduced risk of chronic diseases such as colorectal cancer and type 2 diabetes. According to Fraser, vegans also tend to have lower total cholesterol and blood pressure.

To maintain a nutritious vegan diet, individuals must understand proper food balance. Vegans are known for consuming vitamin C-rich foods, which improve the absorption of non-heme iron. However, vegans may face a higher prevalence of vitamin B12 deficiency and elevated plasma homocysteine levels. Vegetarians may also have lower zinc intakes, although functional immunity shows little difference compared to non-vegetarians.

Veganism is more than just a diet – it is a lifestyle choice that avoids all animal products. Vegans are encouraged to consume B12-fortified foods such as rice beverages, fortified soy, and breakfast cereals, and to include plant foods rich in omega-3 ALA, including camla oil, soy products, ground flaxseeds, and walnuts. Unlike vegetarians, who may still consume dairy, eggs, or honey, vegans completely avoid them.

The Effect of Vegetarian Diets

Vegetarians do not consume meat, poultry, or fish. Both vegetarians and vegans can vary their diets. India has over 35% of its population following a traditional vegetarian diet (Key, Appleby & Rosell, 2006). In the UK, around 5% of people identify as vegetarian. While vegans strictly avoid all animal products, vegetarians consume dairy and eggs.

Types of Vegetarian Diets

• Lacto Vegetarian: Eats dairy products like cheese and milk, but no meat, seafood, or eggs.
• Ovo Vegetarian: Eats eggs but avoids dairy, meat, and seafood.
• Lacto-Ovo Vegetarian: Eats dairy products and eggs but avoids meat and seafood.

Historical Perspective on Vegetarianism

Vegetarianism has deep historical roots. Ancient Greeks believed animals shared similarities with humans, making it morally wrong to harm them. They saw plant-based diets as purifying for the soul and beneficial for mental clarity. During the Renaissance, figures like Leonardo da Vinci predicted a future where eating animals would be viewed as cruel as eating humans. The Enlightenment era saw thinkers such as Tyron, Rousseau, Voltaire, and Wesley promote vegetarian diets for ethical or economic reasons.

The modern vegetarian movement began in 1847 with the founding of the Vegetarian Society of the United Kingdom in Ramsgate, Kent.

and later, the Vegan Society (1944) in Leicester. Influential advocates such as Sylvester Graham, Harvey Kellogg, and Maximilian Bircher-Benner contributed to popularizing plant-based nutrition. Prominent figures like George Bernard Shaw, Mahatma Gandhi, Albert Schweitzer, and Albert Einstein further promoted vegetarianism for moral and humanitarian reasons (Leitzmann, 2014).

Vegetarian Nutrition in Recent Years

In recent decades, vegetarianism has gained global popularity for health, ethical, and environmental reasons. Despite this, vegetarians remain a minority in most countries, with India being an exception. The following table presents data from various vegetarian societies and censuses:

Country	Population (Million)	Vegetarians (Million)	% of Population
India	1260	450	35%
Italy	61	5.9	9%
Great Britain	63	5.4	9%
Germany	82	7.4	9%
Netherlands	17	0.7	4%
United States	320	12.1	4%
Canada	35	1.3	4%
Austria	8	0.25	3%
Switzerland	8	0.23	3%
France	64	1.2	2%

Western countries are gradually reducing meat consumption, with Germany showing a 10% drop. Nutrition education now focuses on promoting awareness of balanced diets and preventing deficiencies.

1. Motivation for Nutritional Balance

Motivation affects how vegetarians manage their diet. Health-motivated vegetarians are more likely to plan balanced meals and monitor nutrient intake. Ethically motivated vegetarians, on the other hand, may face imbalances due to limited focus on nutrition.

2. Nutrient Loss and Food Processing

Vegetarians aim to maintain nutrient-rich diets. However, refining grains (e.g., into white flour) can remove key nutrients. Whole-grain products such as pasta and bread help reduce cholesterol and lower the risk of digestive tract cancers due to higher fibre content.

The Importance of Raw Foods

Raw foods preserve natural nutrients and promote better digestion, satiety, and bowel health. They also encourage chewing, which supports oral health and saliva production. The German Nutrition Society recommends consuming at least 100 grams of raw foods per day.

Visit the official Vegetarian Society UK website for more resources and guidance on plant-based diets.

This was followed by the American Vegetarian Society (1850),

Learn more at the American Vegan Society.

The German Vegetarian Society (1867),

For more scientific nutrition insights, visit the German Nutrition Society (DGE).

Source: Quorn UK – What is the Difference Between Vegan and Vegetarian Diets

Medical Disclaimer: I am not a medical professional and this article is based on personal research and experience . It is for informational and educational purposes only. Please consult alwats your doctor for advice or a qualified healthcare provider before making any changes to your diet,

References

• Craig, W.J. (2009) ‘Health effects of vegan diets’, The American Journal of Clinical Nutrition, 89(5), pp. 1627S–1633S. DOI link
• Key, T.J., Appleby, P.N. and Rosell, M.S. (2006) ‘Health effects of vegetarian and vegan diets’, Proceedings of the Nutrition Society, 65(1), pp. 35–41. DOI link
• Leitzmann, C. (2014) ‘Vegetarian nutrition: past, present, future’, The American Journal of Clinical Nutrition, 100, pp. 496S–502S. DOI link
• The vegan diet (2022) NHS. Available at: https://www.nhs.uk/live-well/eat-well/how-to-eat-a-balanced-diet/the-vegan-diet/ (Accessed: 10 October 2025).

Exercises for Cardio: Evidence-Based Approaches to Cardiovascular Health

Introduction

Physical activity refers to the movement of the body produced by skeletal muscle contractions. Exercise is a specific form of physical training that is intentionally goal-directed, organised and planned to increase one or more aspects of physical fitness. Physical fitness is the ability to perform everyday activities effectively without excessive fatigue, while maintaining sufficient energy to respond to unexpected training demands and to enjoy leisure activities. Physical exercises may be classified as dynamic (isotonic), which includes movement, or static (isometric), where muscle contraction takes place without visible joint movement. In general, exercises can be further categorised into concentric actions, where muscle fibres shorten and lengthen, including a load contrary to gravity. Exercises can be categorised based on metabolic demand as aerobic, taking place in the presence of adequate oxygen. Most physical activities or physical training implement both static elements and dynamic elements. Isometric exercises mainly focus on pressure overload, and dynamic aerobic exercises focus on a volume load on the heart, and both of them positively contribute to cardiovascular health.

Increasing training improves aerobic ability and contributes beneficial adaptations in metabolic and cardiopulmonary function. International clinical guidelines strongly recommend regular exercise as an effective non-pharmacological method for cardiovascular disease prevention (Zachariah and Alex, 2017).

What are the Benefits of Exercise for Cardiovascular Health?

A physically inactive lifestyle is acknowledged as one of the five leading risk factors for cardiovascular disease, along with high blood pressure, obesity, smoking, and unhealthy lipid levels, according to the American Heart Association. Scientific research indicates that lowering these risk factors remarkably reduces the likelihood of having a heart attack, subsequent cardiac events, stroke, or the need for procedures such as angioplasty or bypass surgery. Participating in regular physical activity can positively affect many cardiovascular risk factors. Exercise contributes to weight loss, helps lower blood pressure, decreases levels of low-density lipoprotein (bad cholesterol) and total cholesterol, and increases high-density lipoprotein (good cholesterol). Individuals with diabetes who engage in regular physical activity improve their body's capability to use insulin efficiently, aiding blood glucose control.

Moderate activity can reduce cardiovascular risk when combined with other healthy lifestyle choices, including quitting smoking, balanced nutrition, and using appropriate medication. Regular exercise increases muscle function and strength, improves oxygen intake (aerobic capacity), enhances vascular function, benefits bone health, reduces the risk of disability and back pain, and improves performance of daily activities. People newly diagnosed with heart disease who engage in daily exercise often report returning to work sooner, increased self-confidence, and improved quality of life. Major public health guidelines recommend at least 30 minutes of moderate-intensity exercise per day, such as walking approximately 4.8 to 6.4 kilometres (Myers, 2003).

Fitness Prescription for Weight Management and Cardiovascular Training

Exercise recommendations for improving cardiorespiratory fitness and managing body weight are determined by training frequency, duration, and intensity, mainly through aerobic exercise. Research from endurance training studies lasting 6–12 months shows consistent fitness improvements. Improvements in maximum oxygen uptake (V̇O₂max) are closely linked with exercise intensity, frequency, and duration, often increasing 10–30%. Those with low baseline fitness levels can achieve greater improvements. Genetic factors and baseline physiological characteristics also influence V̇O₂max adaptability. Training duration and intensity are critical; higher intensity increases caloric expenditure but may also increase cardiovascular risk and risk of musculoskeletal injury. Accumulated intermittent activities and continuous exercise of at least 10 minutes are effective. Longer duration and moderate intensity are highly recommended for most adults (Garber et al., 2011a).

Role of Exercise in Lowering Inflammation Through Reduction of Epicardial Fat

Ectopic fat is the abnormal storage of triglycerides in tissues not mainly designed for fat deposition, including skeletal muscle, visceral depots, the liver, and myocardium. Epicardial adipose tissue correlates with visceral obesity, elevated triglycerides, insulin resistance, embolic syndrome features, and increased blood pressure. Perivascular and epicardial adipose tissue contribute to atherosclerosis through close anatomical interaction. In diabetes, triglyceride accumulation in cardiomyocytes is linked to left ventricular diastolic dysfunction, higher BMI, and elevated blood pressure (Golbidi and Laher, 2012).

Adipose tissue acts as an endocrine organ, secreting metabolically relevant mediators, including leptin, TNF-α, IL-6, and MCP-1. Mazurek et al. demonstrated that epicardial tissue exhibits higher expression of inflammatory cytokines than subcutaneous fat. Aerobic exercise significantly reduces epicardial and visceral fat, often exceeding changes in total body weight and BMI. Regular physical activity decreases secretion of pro-inflammatory adipokines by reducing visceral fat accumulation (Golbidi and Laher, 2012).

Cardiovascular Role of Heat Shock Proteins (HSPs)

The heat shock response is a cellular defence mechanism activated by stressors such as hypoxia, protein damage, oxidative stress, ischemia, energy depletion, and elevated intracellular calcium. Exercise stimulates heat shock protein expression in cardiac tissue, though mechanisms remain incompletely understood (Golbidi and Laher, 2012).

Categories of Physical Activity and Intensity

Daily activities beyond organized sports, including stair climbing, brisk walking, chores, gardening, and active leisure, contribute to energy expenditure and health outcomes. Activity intensity can be measured via oxygen consumption (mL/min) or metabolic equivalents (METs). One MET equals the resting metabolic rate (3.5 mL/kg/min). Activities 3–6 METs are moderate (Zachariah and Alex, 2017).

Absolute intensity does not consider individual characteristics like age, sex, body mass, or fitness. Relative intensity, measured as a percentage of VO₂max or heart rate reserve, accounts for these differences and is particularly important for older adults (Valenzuela et al., 2023).

Exercises That Increase Muscular Fitness

Muscular fitness improves through resistance training using free weights, machines, or elastic bands. Programs should include dynamic movements with both eccentric (lengthening) and concentric (shortening) contractions, targeting major muscle groups (shoulders, back, hips, legs, trunk, arms, chest). Single-joint exercises focus on functionally important muscles (abdominals, calves, lumbar extensors, hamstrings, biceps, quadriceps). Training opposite muscle groups prevents imbalances. Proper technique, full range of motion, and controlled breathing (inhale eccentric, exhale concentric) are essential (Garber et al., 2011b).

Cardiovascular Risk: An Evolving Therapeutic Approach

Lowering LDL-C reduces coronary heart disease (CHD) risk. Combining LDL-C reduction with increases in HDL-C leads to better clinical outcomes. This approach can be used by clinicians to support reverse cholesterol transport in appropriate patient groups (Superko and King, 2008).

Further Reading

• American Heart Association – Physical Activity and Heart Health
• World Health Organization (WHO) – Physical Activity Guidelines
• American College of Sports Medicine (ACSM) – Exercise Prescription for Cardiovascular Health

Medical Disclaimer

I am not a medical professional. This article is for informational and educational purposes only. Please consult your doctor or a qualified healthcare provider before making changes to your diet, exercise, or lifestyle.

References

• Garber, C.E. et al. (2011a) ‘Quantity and Quality of Exercise for Developing and Maintaining Cardiorespiratory, Musculoskeletal, and Neuromotor Fitness in Apparently Healthy Adults’, Medicine & Science in Sports & Exercise, 43(7), pp. 1334–1359. DOI
• Garber, C.E. et al. (2011b) Same as above.
• Golbidi, S. and Laher, I. (2012) ‘Exercise and the Cardiovascular System’, Cardiology Research and Practice, 2012, pp. 1–15. DOI
• Myers, J. (2003) ‘Exercise and Cardiovascular Health’, Circulation, 107(1). DOI
• Superko, H.R. and King, S. (2008) ‘Lipid Management to Reduce Cardiovascular Risk’, Circulation, 117(4), pp. 560–568. DOI
• Valenzuela, P.L. et al. (2023) ‘Exercise benefits in cardiovascular diseases’, European Heart Journal, 44(21), pp. 1874–1889. DOI
• Zachariah, G. and Alex, A. (2017) ‘Exercise for prevention of cardiovascular disease: Evidence-based recommendations’, Journal of Clinical and Preventive Cardiology, 6(3), p. 109. DOI

How Food and Nutrition May Support Respiratory Health

Asthma is a paroxysmal syndrome of the respiratory system, characterised by severe breathing difficulty, a constricting sensation across the chest and a heavy feeling of imminent suffocation, happening in the absence of fever or limited inflammation. In many cases, asthma or an asthmatic episode is often followed by several days of symptoms suggestive of gastrointestinal disturbance. The symptoms are reduced appetite, acid regurgitation, excessive hunger, abdominal bloating, heartburn, a feeling of pressure over the eyes, anxiety in the precordial area, and skin itching. Asthmatic attacks usually begin at night during night sleep. The signs of Asthma are characterised by marked tightness across the chest, anxiety, difficult breathing, and a dry, short cough. Respiration becomes heavy, gasping, laboured, and suffocative, while the facial expression reflects extreme discomfort and apprehension. Irregular heartbeat is present. The patient always demands that doors and windows be left open, and the need for fresh air becomes overwhelming. There is also an increase to move from bed to an open window, and the patient finds it difficult to remain in a lying position. The pulse to them may look frequently irregular.

Asthma commonly develops in childhood and and for a few others, may come from a complex mix of genetic, environmental, and predispositional influences and is often linked to different symptoms. Asthma researchers continue to identify the risk of different models on individual risks of asthma. Although from a different understanding as asthma may be a genetic condition, and other complaints can be developed due to living environment conditions, the clinical methods of preventing long-term asthma remain limited. Airway inflammation in patients causes heightened bronchial sensitivity and intermittent airflow obstruction. Healthcare professionals provide a diagnosis of asthma through different combination of patient history, lung function testing, physical examinations and relevant lab work. There are many different treatments that focus on continuous patient education, regular symptom management treatment, quick relief inhalers, etc(Varraso et al., 2007).

Immune Responses, Respiratory Health and Dietary Fat Intake

Clinical research has examined the relationship between the immune system and dietary fat intake, and it has shown that patients consuming high-fat meals can activate inflammatory responses. Although based on eating high-fat meals has been associated with raised levels of circulating pro-inflammatory neutrophils and cytokines. Therefore, those immune changes seem to be important for respiratory disease and lung function. There were examined such as expression of Toll-like receptor 4 (TLR4) and also higher neutrophil concentration was discovered in the sputum of patients with asthma after following to eat fat-rich foods. Furthermore, the finding shows that immune mechanisms contribute to inflammation in the airways while consuming high-fat foods and obesity resulting from a high-fat diet damages immune cell function(Wypych, Marsland and Ubags, 2017).

The Role of Diet and Nutrients in Asthma Food Control

Researchers have identified the asthma risk and diet, which has focused on both dietary patterns and nutrients. Dietary patterns express habitual food consumption among populations and individuals, taking into consideration the types of foods eaten, frequency, their combinations and diversity. these nutrients are consumed as part of a complex food matrix; this method offers important advantages when using the diet-health relationship, as the effects of nutrients are common. Therefore, the most frequently studied dietary patterns are the Western diet and the Mediterranean diet. The Mediterranean diet emerged in the 1950s and 1960s in seacoast regions of southern Europe, particularly in Greece and Italy, where this was linked directly to a lower mortality from coronary heart disease. The guidelines for the Mediterranean diet highlight meals rich in vegetables, fruits and whole grain cereals. Vitamin D intake during pregnancy has been linked to a reduced risk of childhood wheeze. Despite these findings, researchers have shown that neither vitamin D nor vitamin E intake has been clearly demonstrated to have a consistent effect on the development of childhood asthma(Guilleminault et al., 2017).

Although no particular recommendations to prevent asthma during pregnancy have been discovered and the guidelines for vitamin D should be followed as an existing guideline, and this should be followed by respiratory medicine specialists.

The Beneficial Effects of Fruits and Vegetables

Clinical respiratory researchers have found that consuming fruits and vegetables appears to be lower risk of Asthma. Consuming vitamin C at a dose of 0.2 gr per day has demonstrated modest improvement in Asthma control, and a monthly administration of 60,000IU of vitamin D can significantly reduce the risk of asthma exacerbations among school-aged children. Therefore, vitamin D supplementation in preschool-aged children has not shown significant impact on subjective asthma control and needs further clinical trial research (Guilleminault et al., 2017).

Minerals for Respiratory Health

Some minerals have an important role in respiratory health and particularly in children; higher intake, such as calcium, magnesium and potassium, has been associated with a lower incidence of asthma. Although due to the high number of experimental studies and observations have been inconsistent findings that reduced dietary sodium did not improve bronchial responsiveness in adults with asthma. Magnesium has been viewed as a bronchodilatory benefit in asthma, with low dietary magnesium linked to harm to bronchial smooth muscle function in severe asthma and reduced lung function in children and it reduces lung function in children. further to this, it needs more evidence before firm conclusions can be drawn regarding its dietary recommendations and its therapeutic value. According to experts, Selenium intake has been considered to be lower among individuals with asthma compared with non-asthmatic individuals and in other aspects has been reported to have higher maternal plasma selenium concentrations have been inversely associated with asthma risk in outcome. Other studies show that in large well well-controlled trials, selenium has not shown any benefits with supplementation. One small Swedish study emphasises that older people with severe conditions had intakes of selenium and folate. Due to this, serum calcium levels were reduced, probably due to inadequate vitamin D intake. Furthermore, minerals tend to influence respiratory health, and the evidence does not support supplements(Berthon and Wood, 2015).

Medical Plants for Respiratory Disease Treatment

Medical plants commonly used to treat respiratory disorders indicate a wide range of biological activities, such as antiallergic, immunomodulatory, and anti-inflammatory, antioxidant and also antiviral effects. Although people suffering from respiratory health conditions, including cold, cough, bronchitis, and asthma, are largely on plant-based remedies. The benefits of herbal treatment is that they can relieve symptoms through multiple mechanisms:

• Anti-inflammatory combinations reduced disease severity.
• Antiallergic agents prevent pathogen-induced allergic responses.
• Immunomodulators build up host immune defences.
• Antioxidants counteract free radicals at sites of infection.
• Antimicrobial properties limited the intervention of respiratory pathogens.

The remarkable expertise of plants to provide novel bioactive combinations is reflected in the global pharmaceutical market, where medical plants represents more than half of all medical products in the medical world. In the world, there are approximately 80% of the population relies on traditional medical plants based on traditional therapies for primary health care. The support has also come from the World Health Organisation, which encourages the consolidation of traditional and modern medicine, while supporting the integration of medical plans and also promotes research based on identifying effective and safe plant-derived drugs. Medical plants are well known for demonstrating favourable, toxicological, pharmacological and clinical profiles. Several plants are well documented in ethnomedicine, such as thyme, peppermint, eucalyptus, liquorice root, ginger, and turmeric, and those are supported by clinical and pharmacological evidence(Idreis, 2025).

Thyme

A therapeutically and nutritionally valuable herb that has been used in ancient times for both culinary and medical purposes. Their essential oil and spices of genus Thymus have antibacterial, antispasmodic, expectorant, antifungal and antioxidant properties that contribute to respiratory health.

Peppermint

Belongs to the Lamiaceae family, and it is a fast-growing perennial herb. It is identified as rich in menthol, but its main active component is essential oil. Peppermint oil is widely used in the cosmetic industry, pharmaceutical, antiseptic, analgesic, antipruritic, anti-inflammatory and antimicrobial activities.

Liquorice Root

Continues to play a crucial role in treating respiratory disorders and as a supplement to conventional therapies. Its use is suggested to be beneficial against inflammatory and infectious conditions, and also in neurodegenerative diseases.

Ginger

Is a valuable rhizomatous herb, and it is known for its aromatic People consume as fresh, dried, or as oil and extracts. Ginger was first used in southern Asia, and it is widely used in the kitchen, in medicine to manage gastrointestinal disorders, metabolic diseases, inflammatory ailments and cardiovascular conditions.

Turmeric

Has notable anti-catarrhal properties, and it is used for many treatments, such as treating catarrhal conditions of both lower and upper respiratory tracts. Its expectorant action helps in the removal of mucus from the respiratory passages, and it reduces congestion, combined with respiratory infections(Idreis, 2025).

Indoor Humidity for Asthma Prevention

Knowing that fungal spores and dust mites are extremely significant. The relative humidity is maintained below around 45% at temperatures of 20-22 °C, where under these conditions house dust mites are difficult to survive. Although clinical research indicates that higher humidity levels promote a rapid rise in mite populations, this contrast means reaching a few thousand mites per gram of household dust. Increased indoor humidity also supports fungal growth. It is crucial that approximately 60% of recent identified cases of asthma, which can be linked to house dust mites, can be linked to excessive indoor humidity. Preventing methods focus on increasing ventilation and reducing moisture generated indoors. Ventilation should be easy and flexible, but not fixed, and therefore, all humidity levels should always be controlled at a value that prevents the proliferation of allergenic organisms (Andersen and Korsgaard, 1986).

Short-Chain Fatty Acids (SCFAs)

SCFAs can be picked up from certain foods, including some of the cheeses, butter, cow milk, and these are at a point produced through the fermentation of complex bacterial polysaccharides present in dietary fibres. Short-chain fatty Acids are well known for their inflammatory effects in vitro. Further to this, both Short-Chain Fatty Acids and high fibre diets supplementation have been recognised to reduce inflammation in animal models of diseases, including peanut allergy, airways inflammation peanut allergy, colitis, and allergic airways inflammation. The procedures through which Short-Chain Fatty Acids exert their effect are varied. Short-Chain Fatty Acids can contribute to regulatory T helper cells, and decrease the capability of dendritic cells to activate effector T cells and start the inflammasome.

Studies have indicated that mice fed a high fiber diet point out an increased ratio of Bacteroidetes to Firmicutes in both lungs and gut. Pro-inflammatory is generally considered both Saturated and omega-6 polyunsaturated fatty acids(Wypych, Marsland and Ubags, 2017).

Learn More

For further reading on respiratory health and nutrition, you can visit these trusted resources:

• CDC – Asthma Information
• World Health Organization – Asthma Fact Sheet
• NHS – Asthma Overview and Nutrition Tips

Medical Disclaimer: I am not a medical professional and this article is based on personal research and experience . It is for informational and educational purposes only. Please consult alwats your doctor for advice or a qualified healthcare provider before making any changes to your diet,

References

• Andersen, I. and Korsgaard, J. (1986) ‘Asthma and the indoor environment: Assessment of the health implications of high indoor air humidity’, Environment International, 12(1–4), pp. 121–127. Available at: https://doi.org/10.1016/0160-4120(86)90022-X.
• Berthon, B. and Wood, L. (2015) ‘Nutrition and Respiratory Health—Feature Review’, Nutrients, 7(3), pp. 1618–1643. Available at: https://doi.org/10.3390/nu7031618.
• Guilleminault, L. et al. (2017) ‘Diet and Asthma: Is It Time to Adapt Our Message?’, Nutrients, 9(11), p. 1227. Available at: https://doi.org/10.3390/nu9111227.
• Idreis, N.E.M. (2025) ‘Medical Plants for Respiratory Diseases’, 7 Issue 1 2025, p. 95.
• Varraso, R. et al. (2007) ‘Prospective study of dietary patterns and chronic obstructive pulmonary disease among US women’, The American Journal of Clinical Nutrition, 86(2), pp. 488–495. Available at: https://doi.org/10.1093/ajcn/86.2.488.
• Wypych, T.P., Marsland, B.J. and Ubags, N.D.J. (2017) ‘The Impact of Diet on Immunity and Respiratory Diseases’, Annals of the American Thoracic Society, 14(Supplement_5), pp. S339–S347. Available at: https://doi.org/10.1513/AnnalsATS.201703-255AW.