New findings published in the journal Age and Aging show that approximately one out of three adults age 50 and older suffer from sarcopenia, a progressive loss of muscle mass and strength. On average, adults lose eight percent of their muscle per decade starting at age 40. That rate accelerates to 15 percent per decade starting around age 70. This affects one’s ability to walk, get up out of a chair, and grip or lift objects. But this can be fixed! Resistance exercises like weight lifting and an increased daily intake of protein with essential amino acids can improve muscle mass, strength, and function, say the researchers.