How to build muscle as age tears it down

Story highlights

  • Loss of muscle begins in your 30s but gains momentum when you hit 50
  • Sarcopenia, age-related muscle loss, is a leading contributor to frailty

(CNN)If you are in your 40s or 50s, chances are that you are starting to notice some changes in your body, including muscle loss and diminishing strength, even if you exercise fairly regularly.

Reduced levels of physical activity, increases in sedentary behavior and doing less intense exercise all play a significant role in age-related muscle loss, known as sarcopenia, which is a leading contributor to frailty and loss of independence associated with aging. Loss of muscle begins in your 30s but gains momentum when you hit 50 and accelerates even more rapidly in your mid-70s.