Investigating my own cold / blue fingers.

For easily over a year now I've been getting moments of what can only be described as blue finger nails and slow / white fingers. I think it's along the lines / symptoms of Raynaud's syndrome, eerily similar at least from my non-medical training. I attribute it to poor circulation and a few too many beers, getting older and so on.

I found an interesting article in the searching, it can be read in full here:
http://www.supertopo.com/climbing/thread.php?topic_id=1028122&tn=20

I'll take medical advice first as it really is becoming a daily thing for me now, but and mybe afterwards I'll try this too...

To quote the salient part:

Take a look at some of Dr. Murry Hamlet's stuff on cold injury. He was formerly with the U.S. Army's Research Institute of Environmental Medicine.
The problem is not a shell-cor shunt, it's localized. I had a friend visit Dr. Hamlet and tried what is described below. This along with really taking care of his hands, good expensive gloves, preventing them from getting cold at the onset of a climb etc. seemed to work. Seems a like a bit of voodoo, but his results were good. The biggest problem he had was the discipline to follow the plan.

**
"Retrain your arteries**. This technique, developed by Dr. Hamlet, really works. First, make sure the room where you're practicing is at a temperature that is comfortable for you—not too hot and not too cold. Sit for five minutes with your hands in an insulated container filled with hot tap water. Then wrap your hands in a towel and move to a chilly area—the porch or basement, for example. Now, unwrap your hands and dunk them into a second hot-water container for ten minutes. Then go back indoors for another two to five-minute dip. Repeat this routine 3 to 6 times every other day for a total of 50 times. "Our studies showed that after the immersion procedure, hands remained seven degrees warmer when exposed to cool air," says Dr. Hamlet. The results can last two years or longer, he said."