Everything you need to know about photoplethysmography (PPG), the technology behind heart rate measurements in fitness ...

But it turns out more subtle color changes occur at rest as the heart pumps blood around the body. The ebb and flow of blood ...

Get to know the link between your effort level and your heart rate. Plus, how to use heart rate to your performance advantage ...

I unfortunately hear about people — more commonly women — having a potentially serious medical condition that gets ignored ...

Health-tracking tech has never been more accessible, or more intrusive. Here are the pros and cons of data overload.

The organ that works hardest for you deserves your attention now more than ever. With heart disease maintaining its status as ...

Good news for coffee drinkers—starting your day with a cup of joe may provide benefits beyond an energy boost.

Living with a heart that struggles to pump effectively creates daily challenges for millions of Americans. Systolic heart ...

Bhang’s effect on the nervous system and heart’s electrical activity can cause arrhythmias (irregular heartbeats), which can ...