训练负荷过大，会出现过度训练，免疫力低下等问题。
Excessive training will cause training large load and low immunity.
对于颈椎病腰腿疼痛全身酸痛免疫力低下者有着很好的效果。
For cervical spondylosis Yaotui whole body aching pain immunocompromised persons have very good results.
心理学文献中有大量研究表明，分手能导致焦虑、消沉、孤独以及免疫力低下。
The psychology literature is full of studies showing that break-ups can cause anxiety, depression, loneliness and immune suppression.
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