You may be getting ready for New Year’s Eve, but you don’t want the hang over. If you are going to have drink or two, here are the facts and the myths that you need to be aware of.

Myth: Drink coffee. Caffeine will sober you up.

Fact: Caffeine may help with drowsiness but not with the effects of alcohol on decision-making or coordination. The body needs time to metabolize (break down) alcohol and then to return to normal. Also, when caffeine wears off, your body will need to deal with post-caffeine sleepiness. There are no quick cures—only time will help.

Myth: You can drive as long as you are not slurring your words or acting erratically.

Fact: The coordination needed for driving is compromised long before you show signs of intoxication and your reaction time is slowed. Plus, the sedative effects of alcohol increase your risk of nodding off or losing attention behind the wheel.

Myth: The warm feeling you get from drinking alcohol insulates you from the cold of winter. When you’re drinking, there’s no need to wear a coat when it’s cold outside.

Fact: Alcohol widens the tiny blood vessels right under the skin, so they quickly fill with warm blood. This makes you feel warm or hot, and can cause your skin to flush and perspire. But your body temperature is actually dropping, because while alcohol is pulling warmth from your body’s core to the skin surface, it is also depressing the area of your brain that controls temperature regulation. In cold environments, this can lead to hypothermia. So, wear a coat when it’s cold outside, particularly if you are drinking alcohol.

Have a safe New Year’s Eve!