ENTObstructive Sleep Apnoea

The Science Behind Snoring

Dr. Trisha Srivastava
Dr. Trisha Srivastava

Consultant, ENT

Artemis Hospitals, Gurugram, India

May 17, 2026

Dr. Trisha Srivastava explains why snoring is one of the most ignored symptoms in clinical practice — and how three patients with identical symptoms can have entirely different causes, from obesity to nasal allergy to oropharyngeal mucosal sensitivity.

Questions Doctors Asked Dr. Trisha Srivastava

Real questions from the live masterclass, answered by Dr. Trisha Srivastava, Consultant, ENT.

As a layperson, almost everyone snores at one time or another. When does it become a problem, and how do we identify the right point to refer to an ENT?

Asked by Host (Varun, Jivo Healthcare)

It becomes a problem when it turns regular — daily snoring with mouth breathing and next-day tiredness, rather than a passing symptom during a cold or sore throat. It's an ignored symptom precisely because people say only their partner is disturbed. The referral triggers are: chronic nasal blockage affecting sleep, morning headaches, rising blood pressure in a young patient even if still technically normal, or snoring loud enough that family members are actively complaining. At that point it's time for a basic ENT exam to decide whether a sleep study or specific therapy is needed.

Dr. Trisha Srivastava

Can you elaborate more on circadian rhythm and hormones in relation to sleep?

Asked by Dr. Isaya, Tanzania

Stage 3 of non-REM sleep is when growth hormones are released, responsible for repairing the day's muscle wear and tear and, in children, for height and weight gain. If a patient isn't reaching stage 3 and stays mostly in light sleep, that reparative action doesn't happen and they feel tired the next day — in children, the consequence can be a genuine failure to grow as expected despite eating well.

Dr. Trisha Srivastava

Can you elaborate more on the stages of sleep?

Asked by Dr. Isaya, Tanzania

Every individual goes through 4 to 5 sleep cycles a night, each around 90 to 110 minutes, split into non-REM and REM sleep. Non-REM has three stages: N1 is the lightest — waking from it causes no brain fog; N2 and N3 together make up around 75% of total sleep, and it's in N3 that physical recovery, growth hormone release and cardiovascular recovery happen. REM follows, the dreaming stage, where memories are consolidated into long-term storage.

Dr. Trisha Srivastava

How do patients find their way to your clinic for this problem?

Asked by Dr. Miriam, Zambia (President, Jivo Zambia Doctor Chapter)

It's a blend — mostly patients I've already treated referring others after a good outcome, some general awareness through social media, cross-referrals from other departments within Artemis, and GP referrals from outside the hospital, which make up roughly 20 to 30% of this OPD. GPs do a great job fixing the simple presentations themselves; it's when the problem isn't resolving that they refer on.

Dr. Trisha Srivastava

Can taking wine at night help reduce snoring?

Asked by Dr. Isaya, Tanzania

I haven't read that in any textbook or literature. Chamomile tea is said to calm the nerves and may help, and melatonin helps at night, but wine and alcohol generally disrupt sleep rather than improve it — alcohol causes dryness, and people often don't eat adequately alongside it, leading to a calorie deficit. If anything, it disrupts sleep rather than making it better.

Dr. Trisha Srivastava

Can you compare CPAP and BiPAP?

Asked by Dr. Ivan, Uganda

A PAP machine is essentially an airway splint that sends a puff of air to open the blockage at the retropalatal or base-of-tongue level. CPAP delivers one continuous fixed pressure through both inspiration and expiration. BiPAP sets different pressures for each phase — for example 8 cm H2O on inspiration but only 4 cm H2O on expiration — which many patients who can't tolerate CPAP's constant pressure find more comfortable to breathe against.

Dr. Trisha Srivastava

I've observed athletes complaining of lack of sleep after vigorous exercise. What is the relationship between vigorous exercise and poor sleep?

Asked by Dr. Isaya, Tanzania

It could be related to the significant muscle wear and tear from extensive exercise, with the recovery process possibly interfering with sleep — but I have to be honest that I'm not certain about this specifically in athletes, and it would need further looking into.

Dr. Trisha Srivastava

When people are very tired and sleep deeply, some who don't normally snore do snore that night. Is that physiological?

Asked by Host (Varun, Jivo Healthcare)

That's common, and it's physiological. After a hard day, tiredness itself can cause snoring that night, and that's fine — not every episode of snoring has to be branded a pathology. It's only when it becomes chronic and disrupts day-to-day life that it needs to be looked into.

Dr. Trisha Srivastava

Can we say that snoring is more of a structural issue than a physiological one?

Asked by Dr. Orunana

It's both. On the structural side, a blocked nose or another anatomical obstruction found on ENT exam explains the snoring directly — a very lean person with a badly deviated septum is the classic example, and fixing the septum sorts the problem. On the physiological side, obesity is a very common driver with no anatomical obstruction at all — soft tissue and neck fat simply collapse the airway during sleep, and lifestyle modification becomes the treatment rather than surgery.

Dr. Trisha Srivastava

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