So scientists have performed experiments to imitate what happens in a human joint when you crack your knuckles.
科学家们进行模拟实验，查看人类掰响指关节会发生什么事。
They crack loud jokes, they crack their knuckles, they crackle their chewing gum, they clank spoons in coffee cups like they're calling the cows to come in from the fields.
他们大声地说笑话、大声地弄得关节吱吱作响、大声地嚼口香糖、大声地搅拌杯子里的咖啡，就好像他们想把田野里的牛叫进来一样。
But people who can crack their knuckles may actually have healthier joints than others.
但实际上，那些“咔咔”地掰指关节的人比其他人拥有更健康的关节。
But it isn't just finger knuckles that crack - you can do it with your neck, back, knees, ankles and toes.
不仅是指关节可以掰响，脖子，后背，膝关节，脚踝，脚趾都可以。
Previous studies have shown that between 25 and 54 per cent of us crack our knuckles - with men doing it more than women.
先前的研究显示，25%到54%的人掰指关节，掰指关节的男性比女性多。
So let me crack my knuckles here and … turn it over to one of my favorite fan bloggers, the great SanAnDynasty.
所以，让我在这里敲打膝关节，并……转向我最喜欢的粉丝博客之一——伟大的圣安东尼奥王朝。
The sound you hear when you crack your knuckles is actually the sound of nitrogen gas bubbles bursting.
当你压指关节的时候听到的声音其实是氮气气泡爆开的声音。
The sound you hear when you crack your knuckles is actually the sound of nitrogen gas bubbles bursting.
当你压指关节的时候听到的声音其实是氮气气泡爆开的声音。
应用推荐