Dear Doctors: While stationed in Alaska more than 35 years ago, I experienced the tips of my fingers turning white in the cold weather. A doctor said it’s probably Raynaud’s syndrome. Does ...

In a 1936 paper, Sir George White Pickering and Thomas Lewis reported case studies of people with polio-induced nerve damage who had remarkably wrinkle-proof digits.

Toes and fingers turn white and then blue and often get numb and painful. younghun – stock.adobe.com How do you know if it’s Raynaud’s or the beginning of frostbite?