Endurance athletes often have low resting heart rates as a result of intense training, but a new study published in Circulation suggests that a predisposition to prominent bradycardia may be encoded ...

A physician's role is to heal.

Consistently high heart rate may signal dehydration or poor recovery. Resting heart rate indicates fitness; healthy ranges are 60–100 bpm, 40–50 for athletes. Consistently high or very low heart rates ...

The human heart is an extraordinary organ, responsible for tirelessly pumping blood to deliver oxygen and nutrients to every part of the body. Its rhythm—heart rate—is an essential vital sign checked ...

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 ...

A slow heartbeat may not always raise immediate concern, but in many people, it signals an underlying heart rhythm disorder known as bradycardia. Defined as a resting heart rate of fewer than 60 beats ...

Researchers have identified bradycardia—an abnormally low heart rate—as a symptom of xylazine-opioid overdose. This breakthrough finding from the Icahn School of Medicine at Mount Sinai may help ...

Fittingly, the study showed that VO2 max scores were higher in more active states: DC (37.4 mL/kg/min), California (36.4 mL/kg/min) and Massachusetts (36.3 mL/kg/min) had the highest average scores.

Low intensity exercise encompasses activities that aren’t challenging and don’t increase your heart rate much. It can still provide health benefits, particularly when done more often. Exercise is ...

A series of low heart rate alerts on her Apple Watch prompted a woman to get treatment — and discover she had an undiagnosed brain tumor that now needs constant monitoring. Apple Watch has an ECG app, ...