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 ...

We may receive a commission on purchases made from links. Smartwatches and other wrist-bound fitness trackers have exploded in popularity over the past few years, but there's a wearable heart rate ...

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 ...