Take a break from sitting and staring at this dumb computer screen. I know that Peg is fascinating, but you really need to stretch. So get up for a minute and try this "magical" way of stretching.

Face a wall. Stretch out your arms and hands straight in front of you and move closer or further away from the wall until your fingertips just touch it. Obviously, both hands will touch the wall because both of your arms are the same length.

So, now for the magic...

Bend your right arm up to your shoulder and rub the elbow HARD with the left hand. Count SLOWLY to 25.

Extend both arms and hands again and move them forward to touch the wall again. BUT... wait...

This time your LEFT FINGERTIPS TOUCH FIRST!

Your right arm will be shorter. But that can't really happen, can it? The only way to see this is to try with your own arms. If it doesn't happen the first time you did not follow the directions carefully, so try again. It will!

Oh, and you can instantly "reset" your arms by letting them fall to your sides for a moment. When you test your arms again you will find they have returned to equal lengths.

How does it work? "It works very well!"

WHY does it work? Ah! There's the mystery!