Here are the science‑validated points from the article “Men over 50: If you can do these things, you are in good shape” : Walking briskly : Research shows that maintaining walking speed is a strong predictor of longevity and cardiovascular health. Squatting and standing without support : Validated as a marker of lower‑body strength, balance, and reduced fall risk in older adults. Push‑ups : Studies link the ability to perform push‑ups with upper‑body strength and lower risk of cardiovascular disease. Plank hold : Core strength and stability are scientifically associated with reduced back pain and better functional mobility. Flexibility (touching toes) : Evidence supports flexibility as important for musculoskeletal health and injury prevention. Balance (standing on one leg) : Validated by research as a predictor of fall risk and overall neuromuscular health in aging. 👉 These are the functional fitness markers that science recognizes as meaningful indicators of health and longev...