10 Secret Things You Didn't Know Your Body Could Do
4. Your Heart Can Predict The Future
While blowing on your thumb is a great way of slowing down your heartbeat, it's also worth noting that said fast heartbeat could be a sign of good fortune coming your way.
Researchers carried out studies, and the results suggested that if your heart is beating fast for no apparent reason, then it's likely that something exciting - or something very very scary - is about to happen to you. Nobody knows how or why this happens, but it's really cool that your heart knows what's coming before you do.
Next time your heart starts beating fast, perhaps you should go out and buy a lottery ticket before you blow on your thumb.