This video Author: small flower painting slag branded
Some time ago, a small partner asked why we laughed so uniformly, most of which were hahahahaha, why there was no other laughter? For example, goose, goose, goose, goose, goose, hair, hair, hair, hair, quack, quack. In fact, it is not only laughter, but also the cries of people from all over the world. It is rare to hear other people crying.
This is because the two types of sounds, crying and laughter, are not a language and are not affected by regional cultural accents, but an instinctive sound made by humans, a simple social signal.
Please watch the video for all content↑