Both parents play a crucial role for children。Mother can let the children clean and tidy。Father can make the child strong。Together they care for children。To the healthy growth of children。 Essential for children so parents
因为压力大，保持好心情的重要性的英语作文
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，进入血液循环，从而损害人体免疫功能，导致正常细胞癌变。
所以，少忧郁，多乐观，万事想得开，是防癌的有效措施之一。
As is known to all, carcinogenic factor is very complex, and spiritual factors in the occurrence of cancer and development plays an important role.
Modern medicine found that cancer good hair at some setbacks in the long run, spirit is depressed, after, anxiety, depression, anguish, fear, sadness and other emotional nervous. Spirit psychological factors and cannot directly causes cancer, but it often comes in a chronic continuous stimulation to influence and reduce the body's immunity, improve the incidence rate of cancer. These stimulate mainly through the neural physiological, neuroendocrine and immune three system linked to the role the adrenaline cortex, finally, such as increased ketones, endocrine enter haemal circulation, thus damaging human immune function, cause normal cellular canceration.
So, less depression, more optimistic, all things get over it, is one of the effective measures to cancer.
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