How often does the body renew its cells?

Answer by  Drynose (66)

Different tissues renew itself at a different rate. For example, cells lining the small intestine renew every 4 to 6 days. Epithelium cell of the skin renew every 28 days. While in complex glands, he cells may be long lived and renew only when damaged.

Answer by  fried121 (43)

All cells in the human body are replaced over a period of roughly seven years, but the body is constantly replacing cells.