HomeAnswersPulmonology (Asthma Doctors)heavy breathingWhy am I having deep breath sometimes?

What causes deep breath once in a while?


The following is an actual conversation between an iCliniq user and a doctor that has been reviewed and published as a Premium Q&A.

Medically reviewed by

Dr. Divya Banu M

Published At June 1, 2020
Reviewed AtJuly 11, 2023

Patient's Query

Hi doctor,

I am trying to find out a specific function of the diaphragm when it comes to taking a deep breath. There seems to be a deep breath one takes similar to when one is at the doctor and they say take a deep breath and then there is a much more satisfying deep breath one can take which seems to fill the upper lungs with much more air. It looks like the diaphragm (upper belly) moves out a little bit when this deep breath happens. Can anyone explain the mechanics of this? Why can this deep breath happen sometimes and not other times? It is as if I could hold a musical note for 3 minutes because there is so much O2 in my lungs.


Welcome to icliniq.com. It is an interesting question. Your observation that sometimes you can take a deep breath that is a bit more satisfying than other times makes me a bit more curious as to whether you are in the same posture every time you try it. The diaphragmis a muscle that divides everything in chest from everything in the belly with a few orifices that help get certain things like your food pipe through. It helps to expand the lungs by moving towards the belly while to take a breath in thereby creating more space for the lungs. Since there is a finite potential space, I wonder if you feel the difference based on how much food you have had or what time of day is it. I suggest a more detailed discussion if you can provide some more information.

Same symptoms don't mean you have the same problem. Consult a doctor now!

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Dr. Indermohan S Thethi

Internal Medicine

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