因为压力大,保持好心情的重要性的英语作文

it's important to keep in a good mood.nowadays,more and more people are busy working and they are stressed out.so we should do something to be happy .first,when you are tired ,having a rest is necessary .second,when you are sad,you can talk with your parents,friends.and you can also shout or cry.finally,try to listen to some light music when you are sad.all of these can help you to relax yourself.

众所周知，致癌的因素十分复杂，而精神因素在癌症的发生和发展上起重要作用。
现代医学发现，癌症好发于一些受到挫折后，长期处于精神压抑、焦虑、沮丧、苦闷、恐惧、悲哀等情绪紧张的人。精神心理因素并不能直接致癌，但它却往往以一种慢性的持续性的刺激来影响和降低肌体的免疫力，提高癌症的发生率。这些刺激主要是通过神经生理、神经内分泌和免疫三个系统的相互联系起作用的，最后使肾上腺素皮质酮等内分泌增加...

自己动手，丰衣足食。