Cancer and Aging: Yin, Yang, and p53

This article reviewed research on p53, a protein that helps stop damaged cells from becoming cancerous. The evidence discussed came mainly from laboratory cells and mice, not a human trial. More active p53 appeared to reduce cancer risk in some mice but could also cause earlier aging. The findings suggest that cancer protection and longer life may sometimes involve trade-offs.

What this means for you: This does not show that changing p53 will help people live longer. It is not a reason to buy a supplement or treatment, and the animal findings do not directly apply to humans.