Question: If we are sleepy, is it all right to exercise?

Sri Chinmoy: Certainly. Some disciples do headstands. It is very good to do headstands or two or three minutes of asanas, Hatha Yoga exercises; only don't do them for two or three hours. A few minutes will be enough.

From:Sri Chinmoy,The hour of meditation, Agni Press, 1977
Sourced from https://srichinmoylibrary.com/hm