Whenever you are feeling anxious or stressed, the first thing you are told to do is control your breath. There are many different breathing techniques that you can try, like yoga breathing practices like Ujjayi breath, alternate nostril breathing, and deep diaphragmatic breathing.

Diaphragmatic breathing, often called belly breathing, is a simple way to use your diaphragm muscle to breathe more effectively. The Cleveland Clinic explains that the diaphragm is a dome-shaped muscle at the bottom of your lungs. When you inhale, it moves down, making space for your lungs to fill with air. Your belly pushes out as this happens. When you exhale, the diaphragm moves up, pushing the air out. This type of breathing is different from chest breathing, where only your chest moves. You can do this breathing technique anywhere, anytime, and no one will even notice. It's a great tool for calming down quickly.

Why Do You Need Breathing Exercises

The reason why this is the go-to response for stressed people is because when you are stressed, your breathing becomes fast paced. The Cleveland clinic explains that stress triggers a fight or flight response in your body. Your body goes into survival mode as it thinks it is in danger. Some symptoms of this include, racing heart rate and blood pressure increase, this means that you are breathing quickly and heavily in order to move nutrients and oxygen into important muscles of your body.

Benefits of Belly Breathing

Belly breathing has many good things about it. It helps calm your nervous system, which is important when you're stressed. It activates a nerve called the vagus nerve, which helps your body relax. When you breathe slowly, your heart rate also slows down, and your body feels less stressed. It helps you control your feelings, like anxiety and fear, so you can think more clearly. This kind of breathing also helps your lungs work better by taking in more oxygen. It can even help you sleep better because it calms your mind. By practicing regularly, you can feel calmer and more relaxed every day.

How to Practice Diaphragmatic Breathing

Certain conditions like Chronic Obstructive Pulmonary Disease (COPD) do make it difficult to work the diaphragm effectively. Your lungs rise and fall naturally, however with COPD air often becomes trapped in your lungs. Make sure you speak to a healthcare professional in case you are facing any difficulties while breathing.

To start, find a comfy spot. You can lie down with your knees bent or sit with your feet flat on the floor. Put one hand on your belly and the other on your chest. Now, breathe in deeply through your nose. Let your belly push out while your chest stays still. Hold your breath for a moment. Then, slowly breathe out through your nose or with your lips a little bit closed, letting your belly go back in. Do this four to six times, slowly and deeply. As you get better at it, you can do more breaths. Practice this every day, even when you're not feeling stressed, to feel calmer all the time.

"Losing weight isn't about obsessing over diets or rushing to shed pounds."

It is about understanding the reasons behind why a person weighs as much as they do and adopting healthy habits to create long-term success. From an endocrinologist's viewpoint, managing weight involves a thorough approach. Factors such as hormonal imbalances, insulin resistance, thyroid conditions, polycystic ovary syndrome (PCOS), some medications, genetics, and lifestyle choices can all affect body weight. As a result, a single diet or exercise routine may not be equally effective for everyone.

Why Weight Management Needs A Personalised Approach

Also read: Delhi Air Pollution: Should You Move Your Morning Walk And Jog Indoors As AQI Nears 400?

Eating a balanced diet high in nutrients is a key principle to weight control. It's advised not to cut out all food groups or eat extreme low amounts of calories, but ensure that your diet includes moderate portions, lots of protein, fibre-dense, foods, veggies, fruits, and good fats. Participating in a regular exercise programme with cardio exercises and resistance training can boost your metabolic health.

Sleep and behaviour are equally vital. Poor sleep can impact hunger hormones and it can cause cravings, then add stress and emotional eating maintenance can be tricky. Keeping to a sleep routine, managing stress and setting realistic targets will aid in developing a lasting habit.

When Are Weight-Loss Medicines Or Surgery Considered?

Assessment of diet there are certain circumstances, when medical assessment would be the next step, such as significant unexplained weight gain, the failure to lose weight despite an effort, and if there is a presence of other manifestations/diseases like diabetes, high blood pressure, hormonal problems etc. A personalised evaluation is a review of medical history, medication, and relevant investigations and metabolic risk factors.

Your healthcare professional may recommend prescription weight-management medication to use beyond nutrition and lifestyle management, where your weight management plan is based on your BMI, related health conditions and clinical management. Your healthcare professional will need to monitor treatment with medication. You may also be considered for bariatric surgery where clinically indicated.

It's not about hitting the scales at a lesser weight; the aim should be to achieve good metabolic health, physical fitness and quality of life. The fact is that weight loss is a slow journey, and even small, sustainable weight loss can bring significant health gains. A custom program, ongoing assessment and adequate support will beat fad diets every time."

By Dr Hetashvi Gondaliya, Diabetes & Endocrinology, CK BIRLA HOSPITALS Jaipur

A 24-year-old marathon runner, Rachel Apa, collapsed and died two miles from the finish line at the New York City Marathon. In Hyderabad, 36-year-old IBM software engineer Kommineni Gopi died after suffering a heart attack shortly after completing a marathon.

Apa's death was attributed to rhabdomyolysis, a condition involving severe muscle breakdown, while Gopi died following a heart attack.

According to The New York Times, Apa was a former Division I field hockey player at Bucknell University who had trained for months. Gopi was an experienced amateur runner who had undertaken intensive training and multiple endurance runs.

Although such deaths are rare, the incidents highlight the physical demands of endurance running.

How Common Are Deaths During Marathons?

A study published in JAMA, involving 29.3 million US marathon and half-marathon finishers between 2010 and 2023, found:

• Cardiac arrest: 0.54 per 100,000 participants (1 in 185,000).
• Cardiac death: 0.20 per 100,000 (1 in 500,000).

Dr Sudhir Kumar, neurologist at Apollo Hospitals, Hyderabad, said survival has improved with better on-site CPR and defibrillation.

Also read: Water Or Electrolytes? Biggest Hydration Mistakes First-Time HYROX Athletes Make

Who Is At Greater Risk?

According to Dr Sudhir, risk factors include:

• Male sex: Cardiac arrest rates are approximately six times higher in men.
• Older age: Risk rises after 40–50 years.
• Underlying heart conditions: Including coronary artery disease, cardiomyopathy and myocarditis.
• Race distance: Full marathons carry higher cardiac arrest risk than half-marathons.
• Environmental stress: Heat, humidity, dehydration and illness.

Can Extreme Running Affect Heart Health?

Regular running is associated with lower cardiovascular and all-cause mortality and better blood pressure and glucose control.

However, prolonged extreme endurance training may increase the risk of atrial fibrillation, coronary artery calcification in some athletes and myocardial fibrosis in a small subset. These risks remain low for most runners.

What Causes Cardiac Arrest During A Marathon?

Read More: Lancet Study: 1 In 4 Adolescents Worldwide Report No Active Days Every Week: What Are The Health Risks?

Causes vary by age. Younger runners (below 35–40 years):

• Hypertrophic cardiomyopathy
• Arrhythmogenic cardiomyopathy
• Congenital coronary anomalies
• Myocarditis
• Inherited arrhythmias

Middle-aged and older runners:

Coronary artery disease is a major cause and can trigger heart attacks or dangerous heart rhythms.

Other causes include heat stroke, severe hyponatremia, aortic dissection, pulmonary embolism and complicated rhabdomyolysis.

What Is Rhabdomyolysis And Why Is It Dangerous?

Rhabdomyolysis occurs when damaged muscles release myoglobin and potassium into the bloodstream. Excess potassium can trigger dangerous heart rhythms, while myoglobin can damage the kidneys.

Warning signs include severe muscle pain, weakness and dark urine.

“A marathon is not ‘normal’ exercise. It is EXTREME exercise. While most people don’t develop a problem, deaths occur rarely too,” said Dr Rajeev Jayadevan, former president of IMA Cochin.

“Rhabdomyolysis (muscle breakdown) releases potassium into the bloodstream that causes cardiac arrest. Later events include BP crash and kidney shutdown,” he added on X.

Cardiac arrests often occur in the final quarter of a race, near the finish line or shortly after completion.

Why Is Marathon Training Important?

Attempting a marathon without adequate preparation can be dangerous.

“If you are not a trained runner, don't run. Running without understanding the science of it, running without being fit, running without having a baseline health check, running without proper stamina and endurance are all recipes to disaster,” warned Dr Deepak Krishnamurthy, director and lead cardiologist at KIMS Hospital, on X.

People over 40, those with diabetes or hypertension, smokers and individuals with a family history of premature heart disease should consider cardiovascular evaluation before intensive training.

How Can Runners Reduce The Risks?

During training:

• Increase mileage gradually.
• Avoid running during illness.
• Stay hydrated and include recovery days.
• Avoid excessive NSAID use.

• Acclimatise to the weather.
• Start at a manageable pace.
• Hydrate according to thirst.
• Stop for chest pain, fainting, unusual breathlessness or palpitations.

What To Do If A Runner Collapses

• Call emergency services.
• Start CPR if the runner is unresponsive and not breathing normally.
• Use an automated external defibrillator (AED) as soon as possible.

Early CPR and defibrillation can improve survival.

Marathons offer health benefits, but runners need adequate preparation and should recognise warning signs rather than push through them.

With Delhi's air quality nearing 400, doctors have advised people to reconsider their morning workout routines. Outdoor activities such as walking, jogging and cycling can increase exposure to harmful pollutants, particularly when air quality levels are poor.

While regular exercise is important for good health, exercising outdoors when pollution levels are high can affect respiratory and cardiovascular health.

Experts told HealthandMe that adjusting workout timings and choosing indoor alternatives can help reduce exposure.

Delhi's air quality deteriorated to the very poor category on Friday morning, with an Air Quality Index (AQI) reading of 391, just days before Diwali.

Forecasts indicate that the AQI could exceed 400 and enter the severe category between Friday and Sunday, with no immediate relief expected. Around 30 of the 59 monitoring stations across the national capital recorded severe pollution levels on Friday morning, with Rohini reporting an AQI of 475.

Should You Change Your Morning Workout Routine?

Dr Arunesh Kumar, Director and HOD, Pulmonology, Paras Health, Gurugram, told HealthandMe that when AQI levels are high, outdoor activities such as morning walks, jogging and cycling increase exposure to pollutants, particularly because breathing becomes faster during exercise.

Experts recommend moving workouts indoors when pollution levels are high. Yoga, stretching, weight training and low-intensity exercises can help you maintain your fitness routine.

"It's important to check the daily AQI before you go out and to consider moving your exercise indoors when the air quality is poor. You can maintain your exercise regime indoors with yoga, stretching, light strength training and the like. A well-ventilated indoor space is preferable and of course you should avoid doing your exercise near major traffic routes," Dr Arunesh said.

Also read: With Delhi AQI Nearing 400, Pollution & Flu Loom Ahead Of Diwali: What Happens When Both Hit Your Lungs?

What Indoor Exercises Can You Do When AQI Is High?

If air pollution levels are high, you can maintain your fitness routine by moving your workouts indoors. Some alternatives include:

• Yoga: Practise yoga indoors to stay active.
• Stretching: Include gentle stretching exercises in your daily routine.
• Weight training: Opt for indoor strength-training exercises.
• Low-intensity exercises: Choose light workouts that can be done indoors.

How Does PM2.5 Affect Your Health?

"Your breathing rate increases whilst working out, meaning that the pollutants you're breathing can get further into your lungs. This can lead to issues with your breathing and heart over time. Checking your AQI before going on a run/walk/cycle can help create a healthy lifestyle," Dr Rajesh Kumar Gupta, Director, Respiratory Medicine and Interventional Pulmonology, Yashoda Medicity, told HealthandMe.

People with asthma or heart conditions, children and older adults should be particularly careful about exposure on days with high pollution.

Read More: Air Pollution In Delhi: Experts Warn Of Red Eyes, Itching, Watering In Children

How Can You Maintain A Healthy Fitness Routine?

Poor air quality does not mean you need to stop exercising altogether. Experts recommend adapting your routine according to pollution levels.

• Check the AQI: Monitor daily air quality levels before planning outdoor activities.
• Move workouts indoors: Choose yoga, stretching, weight training or other indoor exercises when pollution levels are high.
• Avoid traffic-heavy areas: If you exercise outdoors, avoid major roads and congested areas.
• Stay hydrated: Drink enough water throughout the day.
• Eat a balanced diet: Include fruits, vegetables and whole grains in your meals.
• Prioritise sleep: Get sufficient rest.
• Avoid smoking: Smoking can further affect your health.

Lifestyle choices such as eating a balanced diet, staying hydrated, sleeping well and avoiding smoking support overall well-being, although they cannot prevent the harmful effects of air pollution.

The aim is not to stop exercising but to modify physical activity according to air quality conditions, said the experts. People with respiratory conditions, heart disease, older adults and children should be particularly mindful of their exposure on high-pollution days.