Jesper Bengtson
How much protein you actually need to build muscle, and why the RDA falls short
Current research points to intakes well above the 0.8 g/kg guideline for muscle and healthy aging.
How fast your heart should recover after exercise, by age – and why a slow recovery predicts heart disease risk
A short pulse check after any workout reveals a heart risk many people miss.
The 30-second chair stand test: what a healthy score looks like at 60, 70, 80 and 90
A simple timed test tracks lower-body strength and fall risk in older adults.
How many push-ups should you be able to do? What the number reveals about your heart
A 10-year Harvard study suggests one of the simplest fitness tests may double as a heart-risk check.
Grip strength predicts how long you’ll live better than blood pressure, huge study finds
A study of 140,000 adults ranks grip strength above blood pressure as a mortality predictor.
The 10-second one-leg balance test linked to early death, and how you compare by age
A no-equipment test middle-aged adults can do at home tracks with survival years later.