bromanceHaving a bunch of men over for a dinner, game night, party or other event and they notoriously don’t get along, for instance, your bickering brothers, your father and father-in-law, or male friends who simply don’t see eye to eye?

Try turning up the heat in your home so it makes everyone perspire just a little more than usual.

A new study in the journal PLOS ONE reveals that a certain pheromone in male sweat–called androstadienone–sends chemical signals to other males nearby that promote bonding and cooperation, making guys friendlier toward each other.

Best of all, they’ll never realize why they’re having such a great time, so they’ll probably just chalk it up to your superior hostessing skills!