Stress is an inevitable part of life, but its consequences are not just mood swings and mental fatigue. Continual stress makes people produce extra cortisol, a hormone that has a critical role in adapting to short-term challenges, but chronically in high quantities it tends to cause harm to the body causing lots of physical and mental disorders.

The adrenal glands produce cortisol, which helps the body control its "fight, flight, or freeze" response. Cortisol temporarily adjusts blood sugar levels, maintains blood pressure, and assists the immune system, among other functions, in short spurts. But when stress persists, cortisol remains high, and necessary functions of the body are interfered with and rendered more susceptible to disease.

According to one survey conducted by the American Psychological Association, stress negatively affects a third of Americans' physical health. Concerns are reinforced by research where studies have shown 80% of primary care visits are stress-related.

But why does stress have such a profound impact? Elevated cortisol limits the immune system's ability to fight infections, disrupts hormonal balance, and triggers inflammation. Over time, these changes can lead to serious health complications.

Signs That High Cortisol Is Stressing Your Body

Persistent Eye Twitches

Do you have involuntary eye spasms? These harmless but annoying twitches often indicate elevated cortisol. The tiny muscles around the eyes are extremely sensitive to stress, contracting or spasming because of cortisol's stimulant-like effects.

Skin Breakouts and Sensitivity

Your skin often reflects what is going on inside your body, and chronic stress can cause inflammatory skin conditions. Elevated cortisol levels stimulate oil production, which exacerbates acne. It also slows down the healing process, worsens conditions like eczema, and contributes to general irritation of the skin.

Frequent Bloating and Digestive Issues

It also interferes with the body's balance of salt and water, which causes fluid retention and bloating. Excess cortisol also slows down blood flow to the digestive system, which further weakens gut bacteria and causes poor digestion, excess gas, and abdominal discomfort.

Weight Fluctuations

High cortisol stimulates the production of insulin, which can cause blood sugar to drop, making people want to eat sugary, high-fat foods. For many, this becomes an excuse to stress-eat and gain weight. For others, the opposite is true: their appetite disappears under stress, causing them to lose weight.

Unexplained Bruising

If you’re noticing random bruises, elevated cortisol could be the culprit. This hormone weakens skin proteins and the walls of small blood vessels, making your skin more fragile and prone to damage.

Cold Symptoms That Won’t Go Away

Do you feel rundown or experience muscle aches, fatigue, or upset stomach regularly? Elevated cortisol mimics cold-like symptoms. Long-term stress also weakens the immune system, making you more susceptible to infections.

Also Read: Stressed At Work? Your Sleep Might Be Paying The Price, New Study Shows

Vision Problems

Chronic stress can damage your eyesight. Elevated cortisol disrupts blood flow to the eyes, increases eye pressure, and raises the risk of glaucoma. Symptoms like dry eyes, blurred vision, and light sensitivity are also common.

Irregular Menstrual Cycles

Irregular Menstrual Cycles that disrupt the menstrual period. In females, this leads to hormonal distress causing irregular or missed periods. Over time, it may also disturb fertility.

Tinnitus or Persistent Ringing in the Ears

If you hear ringing, buzzing, or hissing sounds without an apparent source, stress might be the culprit. Cortisol affects the auditory system by interfering with blood flow and nerve function and could be the trigger for tinnitus.

Increased Inflammation and Chronic Disease

Increased levels of cortisol contribute to inflammation that can exacerbate conditions such as arthritis and promote the development of heart disease. Chronic inflammation is also associated with mental health conditions, including anxiety and depression.

Long-term Consequences of Increased Cortisol

Left unchecked, high cortisol levels can lead to more than just short-term discomfort. Chronic stress has been associated with serious conditions such as heart disease, psychiatric disorders, and metabolic syndromes. A 2013 study published in JAMA Internal Medicine underlined the link between stress and physical health, with recent research in Neurobiology of Stres supporting these findings.

Ways Managing Stress and Cortisol Levels

Managing stress and cortisol levels is essential for maintaining overall health. One effective approach is practicing mindfulness through meditation or yoga, which helps lower cortisol by calming the mind and promoting relaxation. Regular physical exercise, especially aerobic activities, helps reduce stress hormones and boosts endorphins. Prioritizing sleep is crucial, as lack of rest can increase cortisol levels; aim for 7-9 hours per night.

Another remedy is an overall balanced diet full of anti-inflammatory foods like fruits, vegetables, and whole grains that could manage cortisol production. Finally, it would prevent burnout and chronic stress if proper boundaries were set at work and in personal life.

The fine particulate in air pollution could do more damage than brain inflammation. New research indicates long-term exposure to air pollution could lead to changes in the brain structure, rapid biological ageing and a higher risk of dementia.

A study from the UK Biobank, which tracks the health of hundreds of thousands of people in Britain, found that those exposed to the highest levels of fine particulate matter (PM2.5) had a 14% higher risk of developing dementia than those with the lowest exposure.

Researchers examined more than 400,000 participants for nearly 14 years, during which almost 9,000 dementia cases were recorded.

The findings, published in the Journal of Nutrition, Health & Aging in April 2026, also identified that greater pollution exposure could be linked to reduced brain volumes.

Polluted Air Could Affect The Brain

Also read: Heatwaves, Noise & Air Pollution Can Harm Mental Health Too: New Global Commission Warns

PM2.5 consists of particles small enough to penetrate deep into the lungs. Some components can enter the bloodstream, while other particles may reach the brain through ways that are still being investigated.

One possibility is that pollution triggers inflammation throughout the body, which can affect blood vessels and brain tissue. Researchers are also examining whether particles that we inhale can reach the brain directly and influence the proteins, cells and processes that lead to neurodegenerative diseases.

Caleb Finch, professor emeritus at the University of Southern California's Leonard Davis School of Gerontology, said evidence increasingly points towards a relationship between pollution exposure and dementia risk.

“There’s a lot we don’t understand yet, but we do know that the risk of dementia increases in proportion to the amount of air pollution,” he said.

Air Pollution & Dementia

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Earlier research has identified mechanisms that link polluted air with neurological disease.

A study published in Environmental Pollution in May 2026 examined nearly 270,000 people over approximately 14 years. Greater exposure to PM2.5 led to structural changes in the hippocampus, a brain region responsible for learning and memory.

Inflammation and changes in fat metabolism appeared to explain the connection between pollution and dementia.

Another study, published in Science in 2025, examined hospital records from 56.5 million Americans between 2000 and 2014. It found that people living in areas with higher PM2.5 levels were more likely to be hospitalised with dementia with Lewy bodies and Parkinson's disease dementia.

Experiments in mice indicated that pollution exposure triggered abnormal folding and accumulation of alpha-synuclein, a protein that forms the deposits known as Lewy bodies. The animals also developed brain shrinkage, nerve-cell death and cognitive decline.

Xiaobo Mao, a study author and professor of neurology at Johns Hopkins University, said, “This is something we were so surprised to see.”

When researchers exposed mice that were genetically engineered without alpha-synuclein to the same pollution levels, a significant amount of damage was reduced. This suggested that the protein may play a role in the reduction.

Outcomes From Different Airborne Particles

Also read: Lancet Study Finds Air Pollution & Chemical Exposures Could Add To South Asia's Diabetes & Heart Disease Burden

In a separate experiment published in September 2026, researchers exposed mice to different airborne particles like diesel exhaust, dust collected from the World Trade Center site and wood smoke.

Diesel exhaust and World Trade Center dust changed more than 1,200 of the same genes, including genes involved in inflammation and amyloid processing.

Wood smoke did not produce changes related to Alzheimer’s. The researchers observed that diesel exhaust and World Trade Center dust contained more metals, cementing the possibility that certain components of pollution may contribute to neurological harm more than others.

How To Reduce Air Pollution Exposure

Individuals can take a few practical steps to reduce exposure to air pollution. These include improving ventilation when cooking, using appropriate indoor air filtration, replacing heating and ventilation system filters regularly and limiting prolonged exposure to outdoor pollution.

Mao said, “Indoor cooking may sometimes be worse than anything else.” He also emphasised that prevention involves maintaining a balanced diet, exercising and spending time outdoors when air quality is better.

An old idea deserves a second look: caring for others may be one of the most powerful ways to care for ourselves.

In traditional Indian homes, we were taught to care for and share with those around us: neighbours, the staff who worked for us, and the wider community we lived in. This was never thought of as charity. It was an everyday part of life, and it carried great value. The community was almost an extension of oneself and one's family.

The idea that the world is one family is not alien to India. The ancient Sanskrit concept of Vasudhaiva Kutumbakam captures it. Over time, as modern life moved faster, this belief slowly faded and self-care took priority. Today, self-care has become almost a global movement, full of advice on exercise, mindfulness, nutrition and stress reduction. Caring and sharing changed form and became "helping others". That was a welcome shift, because it still nudged us beyond our own wellbeing to do good for someone else.

Science Meets Ancient Wisdom

Remarkably, modern science is now bringing us full circle. A growing body of research confirms what philosophers, spiritual traditions and humanitarian organisations have long understood: when we serve others, we nourish ourselves.

The claim that helping others is the ultimate act of self-care may sound paradoxical.

Psychologists call it the "altruistic paradox". Altruism, the selfless concern for the welfare of others, appears at first glance to mean giving away our time, energy and resources. Yet people who volunteer, care, mentor, teach or serve their communities often receive a great deal in return. The rewards are not material. They are better mental, emotional, social and even physical health.

Studies in public health and psychology consistently link volunteering with greater happiness, stronger social connections, a stronger sense of purpose, lower levels of depression and higher life satisfaction. Some longitudinal studies even suggest that regular volunteering is associated with better physical functioning and lower mortality.

Also read: Heatwaves, Noise & Air Pollution Can Harm Mental Health Too: New Global Commission Warns

Why Does It Work?

Part of the answer lies in biology. Acts of kindness stimulate the release of "feel-good" chemicals in the brain, including dopamine, oxytocin and endorphins. This effect is often called the "helper's high".

Helping others also reduces loneliness and builds a sense of belonging, one of our deepest human needs. People who engage in meaningful service tend to report greater optimism, a clearer sense of purpose and more resilience in difficult times.

The benefits are especially significant in later life. Older adults who volunteer regularly report better emotional wellbeing, stronger social ties and less isolation. Retirement can leave a gap in identity and purpose, and service can fill that space with meaning and connection. Altruistic motivation itself seems to amplify these effects.

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Service Above Self

Long before science confirmed these findings, humanitarian organisations built their philosophy around this truth. One of the finest examples are volunteer organisations like Rotary International, whose principal motto, "Service Above Self", has inspired generations of volunteers across the world. The motto expresses a simple belief: personal fulfilment and social progress are deeply connected.

Through projects that deliver safe drinking water, promote education, fight disease, build peace, protect the environment and support emotional health, Rotary members enrich societies every day. Behind these efforts are countless hours of selfless work that nurture human bonds, empathy and optimism.

A Remedy for Modern Times

Many of us are struggling with isolation, anxiety and constant tension. Active service is a powerful remedy. Whether we are tutoring a child, comforting an elderly neighbour, supporting someone's mental wellbeing, planting trees or guiding young people, these acts are much more than simple help. They are investments in shared and personal vitality.

Real self-care needs both inward reflection and outward engagement. Lifting those around us also lifts our own spirit. Dedicating ourselves to others gives us meaning, deepens our social ties and anchors us in a larger human family.

Ancient spiritual traditions and contemporary science arrive at the same insight: supporting others does not distract us from our own fulfilment. It is the most reliable foundation for it.

In an age of division, the quiet grace of helping someone else is a profound source of restoration, for our communities and for ourselves.

Lemon water may help reduce the risk of certain types of kidney stones, particularly calcium oxalate stones, but it is not a guaranteed preventive remedy. Lemons contain citrate, a naturally occurring substance that can bind with calcium in urine and help inhibit the formation and growth of some kidney stones.

Drinking lemon water can also support prevention by encouraging greater fluid intake. Adequate hydration increases urine volume, diluting substances such as calcium and oxalate that can crystallise and form stones. However, the benefit depends on the amount consumed, individual urinary chemistry and the type of stone a person is prone to developing.

What Are the Symptoms of Kidney Stones?

Common symptoms of kidney stones include severe pain in the back or flanks that may radiate to the groin, pain while urinating, blood in the urine, nausea and vomiting. Some small stones may pass without causing noticeable symptoms, while larger stones can obstruct the urinary tract and cause significant pain.

If kidney stone symptoms occur alongside fever, chills or difficulty passing urine, seek urgent medical attention. These symptoms may indicate an obstruction or infection that requires prompt treatment. A healthcare professional may recommend urine tests, blood tests or imaging to determine the stone's size and location.

How Much Lemon Water Should You Drink?

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It is important to understand that lemon water is not a substitute for medical treatment or personalised dietary advice. Adding lemon to water without excessive sugar and salt is a practical option, but commercially prepared lemon drinks may contain added sugar, which is best limited. Lemon water may also aggravate acidity or heartburn in some individuals.

There is no universally established amount of lemon water that guarantees kidney stone prevention. The priority is to drink enough fluids to maintain adequate urine output, with individual requirements varying according to climate, physical activity and medical conditions. People who have been advised to restrict fluids because of kidney or heart conditions should follow their healthcare professional's recommendations rather than increasing their intake independently.

Who Should Take Extra Precautions?

People with a history of recurrent kidney stones should consult a healthcare professional to identify the stone type and understand their specific risk factors. Depending on the findings, they may need tailored fluid intake, dietary modifications or medication. A 24-hour urine test may also help identify substances that contribute to stone formation and guide preventive measures.

Adequate water intake remains the cornerstone of kidney stone prevention, while lemon water can be a useful addition to a balanced hydration routine. However, its effectiveness varies from person to person, and those at high risk of recurrence may need more targeted preventive strategies.

Inputs by Dr. Anupam Roy, Additional Director - Nephrology and Kidney Transplant, Aakash Healthcare Multi-Speciality Hospital, Dwarka