Wearable devices can now track a wide range of data, but resting heart rate (RHR) seems to be frequently overlooked. Meanwhile, VO2 max is often hailed as the ultimate indicator of aerobic fitness.

Q) I AM 82 years old and my pulse fluctuates between 80bpm and 55bpm. Is this normal? A) Strictly speaking, a normal resting heart is defined as being between 60 and 100 beats per minute.

A good heart rate is one within a healthy range. We asked cardiologists how to know what a good heart rate is— what to do if it isn't.

Extreme dieting could be secretly damaging your heart through dangerous electrolyte imbalances and cardiovascular stress. Learn the risks.

I regret to say it’s still only athletes who should give a whoop about Whoop. The tragedy of a niche product is if it sees ...

Yet greater awareness of sleep deprivation’s consequences hasn’t translated into a better-rested populace. Data from the CDC ...

Locate the artery you will use to find your heart rate. Using the tips of your first two fingers, press lightly over the artery. Count your heartbeats for 30 seconds and multiply by 2 to find your ...

“While in our contemporary life, we are constantly pushed to activate our sympathetic response, when we proactively practice mindfulness, self-compassion, meditate, and breathe slowly, it’s the vagus ...

Our medical experts vetted the best watches that monitor heart rate on the market for 2025.

If you have high blood pressure, getting regular exercise is important -- and your Apple Watch makes it easy to check it.