Most guys think “weight” is the metric that matters, but research shows muscle mass is one of the strongest predictors of how long—and how well—you live. A major study in the American Journal of Medicine found that men with higher muscle mass had significantly lower mortality rates, regardless of their BMI. Why? Because muscle improves insulin sensitivity, protects your joints, boosts testosterone, stabilizes metabolism, and reduces inflammation.
Why it matters for men: Losing muscle as you age (called sarcopenia) is linked to lower strength, decreased mobility, higher fall risk, lower testosterone, and earlier mortality—but the good news is men respond FAST to resistance training.
Simple upgrade: Add 10 minutes of bodyweight resistance work daily (pushups, squats, planks). Small consistency = massive long-term payoff.