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人的衰老是生命发展过程中的自然规律,是整个机体的形态和功能逐渐衰退的综合表现。所谓衰老的表现,一般指年龄在六十岁以上的人所出现的一些现象,包括生理上和心理上的老化,如头发斑白、皮肤干皱、牙齿松落、反应迟钝、行动迟缓、对环境适应能力降低、性格孤僻固执、头昏眼花、耳呜、乏力、血压升高,视力、听力、记忆力、思维力减退等。引起衰老的原因学说很多,概括有:消耗说、自家中毒说、内分泌系统失调说、细胞遗传说、细胞衰老说、死亡腺说、生物钟说、以及综合性多种
Human aging is the natural law in the process of life development, and is the comprehensive manifestation of the gradual decline of the whole body’s shape and function. The so-called aging of the performance, generally refers to the age of 60 years of age or some of the phenomena that occur, including physical and psychological aging, such as hair whitening, dry skin wrinkles, loose teeth, unresponsive, slow, on the environment Decreased adaptability, loneliness stubborn personality, dizziness, tinnitus, fatigue, elevated blood pressure, visual acuity, hearing, memory, mental decline and so on. The causes of aging caused by many theories, summed up: consumption, said poisoning, said endocrine disorders, said cytogenetics, cell aging, said the death gland, said the biological clock, and a variety of comprehensive