GET IN THE ZONE

Prolonged laughter can even shift your brain into the gamma state, reports a 2014 study. The highest of the five known brain frequencies, gamma waves are associated with what artists and athletes refer to as

“the zone”, or “the flow state”. “This frequency represents the highest level of cognitive processing,” says study author Lee S Berk. Make Dave Chappelle your warm-up act before a big presentation to drown out the mental heckling.