How fast does your heart beat? It’s a tough question to answer, because our heart rate changes all the time depending on what we’re doing and how our body is behaving. However, [Ludwin] noted that ...

Paying attention to your heart rate when training can be an excellent way to monitor your intensity and performance. Not only can this help ensure you stay within the threshold to burn calories ...

For years, companies have tried to integrate heart rate monitoring into earbuds, but they never quite got it right. I tried several of these early attempts, only to find that the fit was never secure ...