No matter how many push-ups you’re used to doing, reaching the end of a set can feel like a slog. But a push-up can often be a good indicator of your overall strength, particularly your upper body ...

According to Dr. Daniels, a U.S.-based fitness and longevity specialist, “full push-ups, chest to the floor, body in a straight line from head to heels—not modified, not on your knees—the real version ...