To have your hands cold all day means that you are to skinny. People with cold hands all day should not be on a diet. If you cant prevent to have your hands cold, you should wear gloves of boil water and steam your hands till they get warm. Keep your hands moist, lotion would be best. The brand True Blue is a really good brand for moist hands.
Friction
Not necessarily. Some people have a slight problem with their circulation, or they are very sensitive to changes in temperature, and their hands feel cold even on a warm day. This condition is inconvenient but it doesn't have to mean something is wrong. However, sometimes, cold hands can be a symptom of a medical condition like diabetes or anemia. There are also some people who have a condition called "Reynaud's Syndrome," in which the hands (and sometimes the feet) are frequently cold. (Reynaud's is in the family of autoimmune diseases.) You may want to see your doctor and get tested to determine if these conditions are what is causing your hands to be cold all the time.
rubbing your hands together on a cold day.
All 3 hands overlap 24 times a day.
heat energy
A day or so after exposing my hands to extreme cold or very cold water the knuckes begin to itch and sore. Any suggenstion to ease the itch or is it not from the exposure to the cold.
You turn mechanical energy into thermal energy.
They trap the body heat your fingers give off.
I almost think you are kidding. Everything you touch, all day, every day, puts germs on your hands.
depends on which day you mean and where in the world.
An object loses heat because all warmth flows into colder objects. For example, if you are holding a cup of hot cocoa on a cold winter day the heat of the cocoa will go into your cold hands. This is an example of thermal energy.
by sitting in bed all day and taking cold drops