Put Your Finger on the Phone’s Flash to Get a Reading of Your Heart Rate.
It has been increasingly usual to keep track of some health data in recent years. Many people are eager to learn more about the state of their bodies, especially now that the tools to do so are easily available. Some devices provide more information than others, such as the rate at which your heart beats every minute.
If you’re looking for the latter, you’ll want to look for apps that track your heart rate by laying a finger on the flash of your phone. After that, the camera can be used to track the flow of blood under your skin. It’s not ideal, but for people on the road, it’s a useful tool.