Introduction

Sleep apnea is a common but often undiagnosed sleep disorder that causes breathing to stop and restart repeatedly during sleep. While many people think loud snoring is harmless, it can sometimes be a warning sign of obstructive sleep apnea (OSA), the most common form of the condition. Left untreated, sleep apnea can increase the risk of high blood pressure, heart disease, stroke, type 2 diabetes, depression, and daytime fatigue.

In South Asia—including Pakistan, India, Bangladesh, Sri Lanka, and Nepal—sleep apnea is becoming increasingly common due to rising obesity rates, diabetes, smoking, air pollution, and sedentary lifestyles. Fortunately, many cases can be prevented or significantly reduced through healthy lifestyle changes and early medical attention.

What Causes Sleep Apnea?

Obstructive sleep apnea occurs when the muscles in the throat relax excessively during sleep, blocking the airway. The brain briefly wakes the body to restore breathing, often without the person remembering these interruptions.

Several factors increase the risk, including:

• Being overweight or obese
• Large neck circumference
• Smoking tobacco
• Drinking alcohol before bedtime
• Sleeping on the back
• Nasal congestion
• Family history of sleep apnea
• Older age
• High blood pressure and diabetes

Maintain a Healthy Weight

Excess body fat, particularly around the neck and abdomen, is one of the leading causes of obstructive sleep apnea. Even losing 5–10% of body weight can improve breathing during sleep.

In South Asia, diets rich in fried foods, sugary drinks, sweets, and refined carbohydrates such as white rice and white flour contribute to weight gain. Replacing these with healthier alternatives can help.

Choose:

• Whole wheat chapati instead of refined flour products
• Brown rice or smaller portions of white rice
• Fresh fruits and vegetables
• Lentils (dal), beans, and chickpeas
• Grilled fish and lean chicken
• Low-fat dairy products

Limit deep-fried snacks, sugary desserts, soft drinks, and processed foods.

Exercise Regularly

Physical activity helps strengthen the muscles involved in breathing while reducing body fat. Adults should aim for at least 150 minutes of moderate exercise each week.

Suitable activities include:

• Brisk walking
• Cycling
• Swimming
• Jogging
• Yoga
• Strength training

Even a 30-minute walk five days a week can improve sleep quality and reduce the severity of sleep apnea.

Sleep on Your Side

Sleeping on your back allows gravity to pull the tongue and soft tissues toward the airway, increasing blockage.

Many people experience fewer breathing interruptions by sleeping on their side. Special pillows or body cushions can help maintain this position throughout the night.

Avoid Smoking

Smoking irritates and inflames the upper airway, increasing swelling that narrows breathing passages.

South Asia continues to have high rates of cigarette smoking and smokeless tobacco use. Quitting tobacco not only reduces the risk of sleep apnea but also lowers the chances of lung disease, heart disease, and cancer.

Limit Alcohol Before Bedtime

Alcohol relaxes throat muscles and makes airway collapse more likely. It also reduces the brain’s ability to respond quickly when breathing becomes blocked.

Avoid alcohol for at least three to four hours before bedtime. This recommendation also applies to sleeping pills unless prescribed by a healthcare professional.

Manage Nasal Congestion

Blocked nasal passages force people to breathe through the mouth, which can worsen sleep apnea.

Common causes include:

• Seasonal allergies
• Chronic sinus infections
• Deviated nasal septum
• Air pollution

Using saline nasal sprays, treating allergies, and seeking medical advice for persistent nasal blockage can improve breathing during sleep.

Improve Sleep Habits

Good sleep hygiene supports healthy breathing and better overall sleep.

Try these habits:

• Go to bed and wake up at the same time every day.
• Sleep for seven to nine hours each night.
• Keep the bedroom cool, dark, and quiet.
• Avoid heavy meals within two hours of bedtime.
• Reduce screen time before sleeping.

Consistent sleep routines help the body maintain healthier sleep cycles.

Control Diabetes and High Blood Pressure

South Asia has some of the world’s highest rates of diabetes and hypertension. These conditions are closely linked with sleep apnea.

Regular medical check-ups, healthy eating, exercise, and taking prescribed medications can reduce complications and improve sleep quality.

Reduce Exposure to Air Pollution

Air pollution is a growing concern in many South Asian cities. Dust, smoke, vehicle emissions, and industrial pollution can irritate the respiratory system.

Practical steps include:

• Wearing masks on heavily polluted days
• Keeping windows closed during severe smog
• Using indoor air purifiers if possible
• Avoiding outdoor exercise during peak pollution hours

Reducing exposure may improve nighttime breathing.

Recognize the Warning Signs

Many people remain unaware they have sleep apnea until a family member notices symptoms.

Common warning signs include:

• Loud, chronic snoring
• Pauses in breathing during sleep
• Gasping or choking while asleep
• Morning headaches
• Dry mouth upon waking
• Excessive daytime sleepiness
• Difficulty concentrating
• Irritability and mood changes

If these symptoms occur regularly, consult a doctor or sleep specialist.

When Medical Treatment Is Needed

Lifestyle changes may not completely eliminate moderate or severe sleep apnea. Doctors may recommend treatments such as:

• Continuous Positive Airway Pressure (CPAP) therapy
• Oral appliances fitted by dentists
• Weight-loss programmes
• Surgery for selected patients with airway abnormalities

Early diagnosis through a sleep study can prevent long-term complications.

Prevention Starts Early

Parents should also watch for signs of sleep apnea in children, including loud snoring, restless sleep, mouth breathing, and poor school performance. Enlarged tonsils, obesity, and allergies are common contributing factors.

Healthy eating habits, regular physical activity, and maintaining a healthy weight from childhood can reduce future risk.

Conclusion

Sleep apnea is a serious but preventable health condition affecting millions across South Asia. Rising obesity, diabetes, tobacco use, and urban air pollution have increased the number of people at risk. Fortunately, maintaining a healthy weight, exercising regularly, avoiding smoking and alcohol before bedtime, sleeping on your side, and managing chronic illnesses can greatly reduce the likelihood of developing the disorder.

Anyone experiencing persistent snoring, breathing pauses during sleep, or excessive daytime fatigue should seek medical evaluation rather than ignoring the symptoms. Early prevention and timely treatment can improve sleep quality, protect heart health, and enhance overall well-being.