Question

Why do energy needs often decrease with advancing age?

Answer 1

Answer:

Our bodies aren't working as hard to constantly replace cells as we age, thus we require less energy.

Explanation:

In a novel study comparing healthy cells from people in their 20s with cells from people in their 80s, researchers at the Johns Hopkins Kimmel Cancer Center say they have documented that cell division rates appear to consistently and markedly slow down in humans at older ages