笑有助於減低 加重壓力嘅荷爾蒙水平 例如皮質醇 、 腎上腺素同多巴胺 令好心情嘅荷爾蒙水平提高 好似腦內啡咁 亦會令整體血壓下降
Laughter helps lower levels of stress-fueling hormones such as cortisol, adrenaline and dopamine, which raise the level of mood hormones, and elevates the level of hormones that increase the brain, which also lowers overall blood pressure