Dear Doctor K: Last time I went to the doctor, my heart rate was 55 beats per minute. What could be causing my slow heartbeat? Is it dangerous? Dear Reader: A normal heart rate at rest is between 60 ...

If you’re waking up tired even after seven or eight hours of sleep, your heart rate may be falling too far during the night.

Your heartbeat can provide valuable clues to help you stay well. Here’s what top cardiologists want you to know about it.

Is a Slow Heart Rate Dangerous? Just as an increased heartbeat can be problematic, a decreased heartbeat is also a dangerous ...

As the years advance, our bodies undergo numerous changes, and the heart, our tireless driving force, is no exception. While many aspects of aging are gracefully embraced, some require a closer look, ...

DEAR DR. ROACH: I am a 64-year-old male who is a lifelong endurance athlete. For the past 15 years, my primary activities are cycling and swimming. I work out around 10 hours a week now, so it’s ...

Dear Dr. Roach: I am a 64-year-old male who is a lifelong endurance athlete. For the past 15 years, my primary activities are cycling and swimming. I work out around 10 hours a week now, so it's ...

Your heart rate naturally slows down before you conk out at night to shift your body into a rest and repair state. But everyone moves into this slower heart rate at different speeds, and there’s some ...

Understanding your heart rate is crucial for more than just reaching optimal fitness–it can also help to reduce injury and ...

Breakthrough Mount Sinai study is the first to link this symptom to the novel synthetic drug in opioid overdose; findings can help doctors save lives during emergencies ...