由于催产素猛增，内啡肽增加，而疼痛感则会下降。
As the hormone oxytocin surges, endorphins increase, and pain declines.
微笑在临床上的表现能降低血压，提高免疫力，甚至还能释放出天然止痛药(内啡肽)，这每样都能减轻压力、增加快乐和促进健康。
And smiling has been clinically shown to lower blood pressure, boost immunity, and even release natural painkillers (endorphins), each of which lowers stress, boosts happiness, and improves health.
笑声也可以增加内啡肽- - -一种在我们大脑里可以带给我们幸福感的化合物地释放。
Laughter also increases the release of endorphins, compounds that give you a sense of well-being, in your brain.
专家声称，大笑可以提高内啡肽水平、强化免疫系统、增加血管中的氧气含量。
Experts say that laughter increases endorphins, strengthens your immune system, and sends extra oxygen coursing through your veins.
总之，身体在紧张感下，比如长距离的奔跑，会增加内啡肽的分泌量。而内啡肽会令人产生情绪的变化，有正面也有负面的情况。
Overall, an increase in the brain's production of endorphines occurs when the body is put under stress such as long distance running, and the endorphines then cause a positive or negative mood change.
大量不同研究显示，针灸能促使人体自身的镇静成分，也就是内啡肽的增加，而这将会有助于解释针灸对缓解疼痛的疗效。
Numerous lines of research show that it boosts levels of the body's own opiates5, called endorphins. This would help explain its effect on pain.
大量不同研究显示，针灸能促使人体自身的镇静成分，也就是内啡肽的增加，而这将会有助于解释针灸对缓解疼痛的疗效。
Numerous lines of research show that it boosts levels of the body's own opiates5, called endorphins. This would help explain its effect on pain.
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