If you’ve had a stressful day at the office or it was just one of those days where nothing seems to be going right, you may want to phone up that friend who’s always super bubbly to break a sweat at the gym with you! Turns out happiness really is contagious. According to a recent study, smelling the sweat of a happy person could put you in a good mood. The research team gauged the expressions each scent brought about in the women, and discovered that they smiled more often when smelling the sweat of the happy participants.

READ MORE: Study Discovers that Other People’s Sweat Can Make You Happy