Carley is a writer, editor and social media professional. Before starting at Forbes Health, she wrote for Sleepopolis and interned at PBS and Nickelodeon. She's a certified sleep science coach and ...

Medically reviewed by Paria Sanaty Zadeh, PharmD Key Takeaways Magnesium supports normal heart rhythm by regulating ...

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 ...

DEAR DR. ROACH: I wear a smart watch, and a few times now, it has alerted me that my heart rate is below 45 bpm. This has only occurred when I’m in my recliner, relaxing and starting to nod off. I am ...

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 ...

Oura reports that heart rate variability (HRV) measures the variation in heartbeat timing, reflecting stress levels and ...

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 ...

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 ...

Chronic, mild dehydration quietly increases the workload on your cardiovascular system. Even mild dehydration reduces blood ...