Well, there had to be SOME reason why people chew gum, right? A recent Japanese study showed that when people are acutely stressed (the stress in this study was created by loud noise), chewing gum raises their heart rate variability (HRV), which reduces stress—even though the participants did not report any subjective lowering of stress. To find out more about stress and how you can easily detect and manage it, check out http://www.sweetwaterhrv.com.

Download SweetBeat™, the iPhone stress management app.