Japanese walking this. Hot Pilates that. Trendy workouts may be top of mind, but one question always remains: How much exercise per week do you actually need to be healthy? While you might think it’s ...

You may not need hours at the gym to boost your health after all. Researchers say just 30 minutes of high-intensity exercise per week — broken into tiny bursts of effort that leave you out of breath — ...

Aerobic fitness is a strong predictor of heart health and longevity, and it can be improved with weekend-only exercise. Exercising only on weekends can still be beneficial, provided the same total ...

NPR's science podcast Short Wave brings us stories on food fortification, why some people don't seem to get the flu, and a study on how much vigorous exercise you really need. It's time now for our ...