求翻译：人生来就会笑，但很少有人知道，笑也是一种很好的健身运动。每笑一声，从面部到腹部约有80块肌肉参与运动。约有80块肌肉参与运动。是什么意思？

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Human beings are able to smile, but very few people knew that laugh is also a very good fitness campaign. Every smile, a voice from facial abdomen muscle about 80 participation in sports. There are about 80 muscle movement participation.

The human can smile since birth, but the very few some people knew, smiles also is one kind of very good health sports.Smiles one every time, has 80 muscle participation movement approximately from the face to the abdomen.Approximately some 80 muscle participation movement.

People are born will laugh, but very few people know, laughter is a good exercise. Every smile, from face to about 80 muscles of the abdomen to participate in sports. There are about 80 muscles participate in sports.

People are born will laugh, but very few people know, laughter is a good exercise. Every smile, from face to about 80 muscles of the abdomen to participate in sports. There are about 80 muscles participate in sports.