Why do people laugh after listening to jokes?

There is a kind of nerve called laughter nerve in the center of human brain.

"Why on earth do people laugh?" People don't know yet.

Dr Ramachandara of the United States has made a new exploration in this field. He pointed out that when you listen to a joke or something interesting happens, you may think that something will happen, but often the ending is another matter, so you must fundamentally reinterpret it. It can be seen that people tell people around them that what just happened is a "false alarm".

According to this theory, if someone steps on a banana peel and falls on his head, you won't laugh, but if he gets up again after falling, pats himself and continues on the road, you may laugh-in fact, this is to tell people around him with a smile that there is no need to help him at all. It turned out to be a "false alarm."

Dr Ramachandara further concluded that in ancient times, primitive people who served as guards may have released "false alarms" by laughing (such as wolves coming).

Dr Ramachandara discovered this "false alarm" phenomenon while treating a woman with strange encephalopathy in India. She giggled when he pricked her skin with a needle. In this regard, he analyzed that if the needle touches a normal person, the pain signal received by the skin will be sent to the part of the brain responsible for responding to pain, and then the information will be transmitted to the sensory center in the brain from there, and finally it will feel pain. But for the woman, the information only reached the pain center of the brain, but not the sensory center, because the connection between the two was abnormally cut off. So she just felt a little pain, not a sharp pain, and her brain could only interpret it as "a false alarm", so she giggled.