I have a question - Can Raynaud’s syndrome cause nails to turn black? Ed’s note ... It has been described more among people living in colder climates or cold weather conditions.

Your cold feet could all be down to something called Raynaud's disease. While you may think ... causing a cold sensation in the lower limbs. In people who suffer from this condition, with the ...

However, in people with Raynaud’s phenomenon, this regulation is exaggerated and dysfunctional. The body responds to cold or stress by overreacting, leading to excessive constriction of the ...