关于衰老的学说有许多,这些学说都有一定的事实根据和实验研究证明。但由于事实根据不充分,实验证明也常限于问题的某一方面,所以到目前为止还不能肯定哪一种学说是正确的。这些学说主要有遗传基因说,失误学说,差错灾变说,免疫学说,内分泌学说,以及分子交联,自由基反应等。它们有的相互关连,有的可 There are many theories about aging, these theories have some facts and experimental studies to prove. However, due to insufficient factual evidence and experimental proof often confined to one aspect of the problem, so far it can not be certain which doctrine is correct. These theories are mainly genetic theory, error theory, error catastrophe theory, immunology theory, endocrine theory, as well as molecular crosslinking, free radical reactions. Some of them are interrelated and some are acceptable