Episode

29 Jan 2026 · 16 min

0:00

Ben Greenfield explores how laughter and positive emotions strengthen physical health. Norman Cousins recovered from illness using laughter therapy and vitamin C. Studies show comedy increases blood flow by 22%, boosts immune cells, and lowers blood sugar after meals.

Questions this episode answers

1964

Roughly 38 pills of aspirin and phenylbutazone per day (equivalent)

About 10 minutes of genuine belly laughter produced at least two hours of pain-free sleep

20 healthy volunteers

Blood flow decreased by an average of 35% during the war movie and increased by an average of 22% during the comedy

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