Dear fellow members

May I know that ..does mastrubation causes hair loss? after mastrubation do we feel more sleepy..a little headache continues after mastrubation??? Is this all normal????

also is it better not to mastrubate during studies and exam times...becasue i feel we have some memmory loss and we do not feel that ..because even if we are writing wrong answer..we know that it is right..is it correct  and normal ?

Please reply..shall be grateful to all of you.