1.防“退化”。为了防止手指甲、舌头、头发、牙齿退化,老年人应做到:散步时尽量穿布底鞋,两脚行走以趾抓地。两手时刻做握拳伸拳活动,这样会起到舒筋活血的作用;舌头经常做吞吐锻炼;经常做一些轻微的叩齿运动,适当补钙,常食鱼类、虾皮、瘦肉等;人老发白,多是血之黏稠度过高,流速较慢所致。老年 1. Anti “degeneration”. In order to prevent fingernails, tongue, hair, teeth degradation, the elderly should do: walking as much as possible to wear cloth shoes, walking on both feet to grip. Doing both hands at the moment of fist boxing activities, this will play the role of Shujinhuoxuexue; tongue often do huff and puff exercise; often do some minor knocking movement, appropriate calcium, often eat fish, shrimp, lean meat, etc .; White, mostly the viscosity of the blood is too high, due to slower flow. elderly