Anuloma Viloma Timer
Anulom vilom is gentle, but not for every day. Skip it with a blocked nose or a fever, and never straight after a meal.
That sentence is less exciting than most of what gets posted about breathing. It is also the part people tend to leave out. Alternate nostril breathing is one of the mildest practices in the pranayama family: you sit, close one nostril, breathe slowly through the other, and switch. There is nothing forced about it, which is exactly why it is usually the first technique a teacher gives a beginner. Mild does not mean right for every person on every day, though. Below are the cautions that come up again and again in traditional teaching and in plain common sense. They are cautions, not medical advice, and anyone with a health condition should ask their own doctor first.
Days to skip it
When your nose is blocked. The whole practice depends on breathing through one nostril at a time. With a cold or a bad allergy day, one side may barely move air at all. Forcing it turns a slow, quiet breath into a strain, and switching to the mouth defeats the point, since the in-breath and the out-breath are both meant to go through the nose. On those days, rest. The practice will be there when the cold has gone.
When you have a fever. A body fighting an infection is already working hard. A breathing practice is not the moment to add a new demand. Sit quietly if you like, breathe normally, and come back to it when you are well.
Straight after a meal. Pranayama is traditionally practised on an empty stomach: early in the morning before you eat, or in the evening two to three hours after a meal. A full stomach presses up against the diaphragm, and the long, even breaths the practice asks for become uncomfortable. If you missed your morning slot, wait rather than squeeze it in after lunch.
Signs to stop
Dizziness or light-headedness. This is the most common sign that something is off, and it usually means you are breathing too deeply or too fast, or holding the breath longer than you are ready for. Stop, let your breath return to normal, and sit until it passes. Next time, make the breaths smaller and slower. A good anulom vilom breath is soft enough that someone sitting next to you would barely hear it.
Breathlessness or air hunger. If you feel you are not getting enough air, the count is too long for you right now. Shorten it. A 4 in, 8 out count is a common starting point, and many people start lower. There is no prize for a long count.
Any chest pain, tightness or a racing heart. Stop, and get it checked.
The breath holds some people should leave out
Many versions of the practice add a pause, a held breath, between the in-breath and the out-breath. In the old texts this hold, kumbhaka, is the advanced part, and the Hatha Yoga Pradipika is blunt about it: build up slowly. You can do anulom vilom with no hold at all. For some people, that is the version to stay with:
- If you are pregnant, leave out the holds unless your doctor or a qualified prenatal teacher has said otherwise.
- If you have a heart condition, high blood pressure or another blood pressure problem, leave out the holds unless your doctor agrees.
- If you have a lung condition such as asthma or COPD, talk to your doctor before you start. Researchers are interested in this area: several trials comparing alternate nostril breathing with other methods in people with asthma and COPD are registered on ClinicalTrials.gov, but none had reported results when we checked this week, so there is nothing yet to go on.
Never in or near water
This one is not about anulom vilom itself, but it belongs on any breathing safety list. Fast breathing followed by a long breath hold can make you black out without warning, and in water that is how people drown. Never practise rapid breathing or breath holds in a pool, a bath, the sea, or anywhere near water, and never alone. Anulom vilom is a seated, dry-land practice.
What the studies can and cannot tell you
There is a growing body of research on alternate nostril breathing. A study in the October 2026 issue of the International Journal of Research in Medical Sciences, from King George’s Medical University in Lucknow, followed healthy young adults who practised anuloma viloma for ten minutes a day for four weeks, and reported lower pulse rate and blood pressure and a better peak expiratory flow rate than a control group. A 2025 meta-analysis in Frontiers in Psychiatry pooled randomized trials of pranayama for mental health conditions.
Two caveats matter for safety. First, these studies mostly recruit healthy volunteers or carefully screened patients, under supervision. A result in healthy young adults tells you little about what is right for someone who is pregnant, unwell or managing a heart condition. Second, the technique itself is not standardized across trials. Counts, ratios, session lengths and whether holds are included all vary, so no study gives you a safe dose to copy. That is one more reason to start small and let comfort, not a number from a paper, set your count.
The short version
Skip it with a blocked nose, a fever, or a full stomach. Stop if you feel dizzy, breathless or unwell, and breathe normally. Leave out the holds if you are pregnant or have a heart or blood pressure condition, unless your doctor agrees. Never do fast breathing or holds near water. Everything else is a slow count, one nostril at a time, at a pace that stays easy.
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