Daily impact-loading jumps (10–30 per day) improve hip and spine bone density in post-menopausal women.

Resistance training 2–3× per week independently reduces all-cause mortality by 15–20%.

Grip strength is a stronger predictor of cardiovascular mortality than systolic blood pressure.

Slow eccentric reps (4-second lowering) produce more hypertrophy than concentric-focused training, volume-matched.