photo via getty.
If your first thought on a cold day is to reach for a warm drink, you might want to grab a sweater instead. A cup of hot coffee might create the opposite effect from what you want.
According to the Wall Street Journal, your body already has a mechanism to keep you warm when cold. it's called shivering. When you sip on something warm you are fighting nature.
Caffeniated drinks like coffee will actually cause you to become colder. They're a diuretic, which removes heat retaining water from your body through urination.
You should also avoid alcohol. You might think it warms you up but it doesn't and could bring about more severe problems while out in the cold like, hypothermia.