PremiumDr Jordan D. MetzlWashington Post·17 Jun, 2026 07:00 PM7 mins to readMuscle is increasingly viewed as a core determinant of health span. Photo / 123RFMuscle is increasingly viewed as a core determinant of health span. Photo / 123RFI notice that even though I’m strength training twice per week, I’m losing muscle mass. Is there anything I can do to prevent it?A patient in her late 60s recently asked me this without alarm, almost as if she was describing the weather.

“I feel like I’m getting scrawnier