Some studies suggest that laughter affects the immune system by reducing the production of hormones associated with stress,and that when you laugh the immune system produces more T-cells.

• 一些研究显示，通过减少与压力相关的激素分泌，笑对免疫系统产生了影响。当你开怀大笑的时候，兔疫系统产生更多的T细胞。