Experts now better understand the causes of different types of chronic pain. Here's what to know about the treatments that can bring relief. By Meeri Kim Almost everyone has pain sometimes. It might ...

Frequent exercise doesn't just strengthen the heart—it also changes the nerves that control it, according to new research which could guide more targeted and effective care for common heart problems.

Scientists have long known that regular exercise can lower your heart rate and strengthen your cardiovascular system. However, new research on rats suggests that aerobic workouts may also reshape part ...