Physical activity

A massive global study has turned up some grim news: That 87% of us are not routinely getting quality sleep and meeting physical activity levels needed for long-term health. And, scientists discover, one is more influential than the other.

Strong bones need more than workouts; they need less sitting. A sweeping review shows that across all ages, even light daily activity protects bone health, while too much sedentary time quietly raises the risk of fractures.