迄今为止，大多数有关锻炼和焦虑的相互影响的研究都集中在大脑内的各种神经递质或化学信使，如血清素、多巴胺上。

To date, most research into the interplay of exercise and anxiety has focused on the actions of various neurotransmitters or chemical messengers within the brain, like serotonin and dopamine.

youdao

体育锻炼能直接影响我们的情绪，无数的研究证明，锻炼能释放内啡吠和血清素（令身体感到愉快的化学物质），能积极地影响你的心情。

Physical exercise has a direct influence on our mood, and countless studies have shown that exercise releases endorphins and serotonin (the body’s pleasure chemicals) that positively affect your mood.

youdao

交流不畅就意味着血清素水平降低时，前额皮质难以控制杏仁核内产生的愤怒情绪。

'Weak' communications means that it is more difficult for the prefrontal cortex to control the feelings of anger that are generated within the amygdala when the levels of serotonin are low.

youdao