Hiccups appeared to push air into the lungs

The origin lies in hiccups evolyutsii



Now hiccup assumes no useful function, but our ancient ancestors, it was necessary. Hiccups can spoil the impression of a good meal, a sad movie, or first date. It is sometimes annoying, sometimes painful, but always futile for man.

For the first fish and amphibians hiccups, more precisely, muscle contraction during the hiccups, it was vital. Millions of years ago, the animals began to use light to go out on the land, and hiccups served to push the air into the lungs.

When the animals back into the water, they had to prevent the ingress of water into the lungs and pass into their lungs, glottis, they also covered by a hiccup. In other words, a long time ago contributed to the evolution of the hiccups.

via factroom.ru