Poor blood circulation.
Friction
Ummm....no. Hands AREN'T blue but they can go blue when you are cold or sick.
no , unless they are fast runners, impossibly strong, pale white and ice cold skin, and they don't usually go out in sunlight
put hands in cold water
wash your hands in warm water :) also keep your hands warm. if this doesn't help then go to your doctor :) Your fingers usually go purple if they are cold!
there is pertickly no answer but there might be and answer on filb .com
go outside of the super market and then go down and you'll see the path to cold storage
Molecules heat up or cool down. like when you rub your hands together you get warmer and when you go out in the cold you get cold quickly.
One thing you can do that can help for your hands if that is a problem is wearing gloves when you go outside, as long as the gloves are not wet. That will help protect your hands from getting cold and drying out. Another thing that can help is to avoid very hot baths/showers. Because although it feels great in the winter time it can seriously dry out your skin. On top of this it is a good idea to continue moisturizing frequently.
They can be. I mean, if you were recently cold or something along the lines of that, then it probably isn't. If accompanied not in mainly cold weather that you were recently in and tingly hands and feet, see a doctor.
yes because you can warm your hands by friction when it is cold, but friction can stop you when you are trying to go down a slide.
There are many benefits to using ski gloves. One of the greatest benefits is protecting the hands from hypothermia. While skiing the cold air will hit against the skin which can cause the hands to go numb and let go of the sticks.