Not saying that I believe in it, but the hand can tell you a lot. I'm remembering once, about 40 years ago, there was an early evening programme on Yorkshire T.V. which featured an astrologer, a handwriting expert and a palm reader. It was teatime entertainment, so I was in and out of the kitchen, - they were given birthdate and time (as near as poss.), a standardised piece of handwriting and a palm-print respectively - and invited to name the 'mystery guest and spend some time describing how they reached their decision.
One week the palmist, when appealed to, said flatly, "This man was born in a barn. It has to be James Herriot." No arguments or hedging. It was Herriot. Gave me food for thought. Hands do change over the years and indicate all sorts of things.