Weirdly, if you're over 40 and have been reading for a while and then look up and notice everything looks blurry in the distance, you can tighten up every muscl

Weirdly, if you're over 40 and have been reading for a while and then look up and notice everything looks blurry in the distance, you can tighten up every muscle in your body for about ten seconds and when you relax much of your distance vision will be recovered. Let's call in the poor man's reversal.