What age is peak?

Physical strength peaks at around 25 years of age, about when muscle mass peaks, too, according to an article on the website sportsci.org. Strength plateaus from 35-40, then falls, with a 25% loss of peak force by the age of 65.

Is being fat unhealthy?

But being overweight is actually a medical concern because it can seriously affect a persons health. Diabetes and heart disease are health problems that can stem from being overweight. Being overweight can also affect a persons joints, breathing, sleep, mood, and energy levels.