By Lou Schuler
Everyone knows that cardio exercise is crucial for overall health. But the secret to staying strong and vital for life isn’t just in walking, running, biking, swimming, and other forms of aerobic fitness. It’s in your muscles. In a 2021 review of 16 studies from around the globe, researchers found that just 30 to 60 minutes a week of muscle-strengthening, or “resistance,” exercise increased life expectancy by 10 to 17 percent. What counts as a muscle-strengthening exercise? Lifting weights, of course, but also yoga, Pilates, calisthenics, and even carrying the groceries (or a grandchild). ..