PREVIEW
... ns of aging, and physical strength will start to decline.
The early manifestations include feeling tired easily after exercise and skin developing wrinkles, becoming rough and losing its luster, along with a decrease in collagen, and so on.
In the later stages, it becomes completely covered with wrinkles, hair turns white, bones become brittle, physical strength is close to zero, and vision and hearing are not as good as when young, completely transforming one into an old person. ...
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