Now, researchers at Loma Linda University in Southern California say they have found a physiological change that occurs when people laugh, and it lasts long after the laughter subsides.

• 现在,位于加州南部的Loma Linda大学的研究人员报道他们已经发现人们在放声大笑时的生理变化,在大笑之后,这种变化还能持续很长时间。