physical exertion

the activity of exerting your muscles in various ways to keep fit; "the doctor recommended regular exercise"; "he did some exercising"; "the physical exertion required by his work kept him fit"

वह अपनी रोटी शारीरिक श्रम के द्वारा कमाता है।

It usually occurs during physical exertion, after emotional upset or after a heavy meal.