Protecting the health of your heart to the greatest extent possible may require far more exercise than current guidelines recommend. Today, health experts generally advise 150 minutes of moderate-to-vigorous physical activity (MVPA) a week. But what happens if you work out more than that? A study of health data from the United Kingdom suggests that the more physical activity you do, the better for your cardiovascular system. The long-term data analysis was conducted by researchers in China and