Rest and Relaxation
MUSTI MUDRA (close your thumb with other fingers on both the hands) gives rest and relaxation for the brain.
To gain weight
One should do the Pran Mudra. Do it by touching your ring and little fingers with the tip of the thumb on both the hands.
To have desired results, one has to practice this Mudra at least for half an hour. You can also practice this Mudra while walking or sitting.