A handshake can reveal how long you will live
How likely you are to die in the next few years could be judged from your handshake, new research shows.
http://www.afr.com/lifestyle/health/mens-health/a-handshake-can-reveal-how-long-you-will-live-20150515-gh273d.html
I doubt this is causative, almost certainly correlative (meaning a firm handshake doesn’t cause longer life, just reveals those that are healthier), but it does give an easy way to test to see if someone is on the way out. An interesting next step would be to take those with wimpy handshakes and give them extra health counseling and encourage them to exercise, then if that group lives longer than the control group (uncounseled wimpy handshakes), then it becomes a very handy and simple health metric.
