Humans aren't the only ones with a sense of humor. Rats chirp when they are tickled, and chimpanzees have a panting "laughter" they use during play. It seems the "ha ha" is hardwired into the mammalian brain as a way to facilitate play and cooperation. The Bottom Line
The next time you find yourself caught in a "ha ha ha ha" loop, don't hold back. You’re not just reacting to a punchline—you’re participating in an ancient human ritual that keeps us healthy, connected, and sane. ha_ha_ha_ha
You are to laugh in a group than when you are alone. Laughter isn't just about the joke; it’s about the relationship. It releases endorphins, reduces the stress hormone cortisol, and creates a sense of shared identity. 4. Even Animals Do It Humans aren't the only ones with a sense of humor