Question

why is it that one of the suffer from indigestion during examination time

Answer 1

Here is ur answer..
Digestion is a very complex process. It requires great mental and physical balance. Whenever you are in stress condition of any kind, your brain tries to coordinate with the stress management and digestion. But most of the times, when we are in great stress, the brain fails to coordinate these processes thus indigestion occurs. Same thing occurs during examination time. 
It is clear that the digestion greatly depends upon the mental health of a man so keeping one self happy and tension free, one can enhance his/her digestive health.

Hope it helps:)

Answer 2

if we eat late In night and suppose if there was examination tomorrow indigestion p curs