Too Much High-Intensity Exercise Could Hurt Heart Health

On the heels of research suggesting too much running could lead to an earlier death, two new studies say too much high-intensity exercise could lead to heart problems. The first, conducted by German researchers, followed more than 1,000 people mostly in their 60s, who had existing heart disease and had enrolled in an exercise program to prevent further heart health issues. As hypothesized, the least physically active people were at increased risk for heart problems and earlier death. …