I'd do more than one finger. I did 4 fingers on each hand.
Each finger showed slightly different wrinkling degrees. Most of the wrinkling was on the left hand. And I had a tiny wrinkle on my right ring finger, but none of the other 4 fingers on the right.
I don't think one finger is a good test.
__________________
All truths are easy to understand once they are discovered; the point is to discover them.-- Galileo Galilei
************************************
.
Weezie looking at petunias 8.25.2017
****************************
These forums are for mutual support and information sharing only. The forums are not a substitute for medical advice, diagnosis or treatment provided by a qualified health care provider. Always consult your doctor before trying anything you read here.