If sneezing, coughing, and a sore throat weren't a clear sign that winter is here, how about temperatures dropping down into the teens?

Extra layers of clothes will help you keep from getting sick, but you also need to make sure you have average levels of humidity to keep yourself healthy this season.

"If you're in a dry environment while you're sleeping, your nose might dry out and you might see more nose bleeds," said Dr. Richard Pawl, MCG ER. You’ll need a humidifier to keep your home at an ideal level of about 45 percent.

The cold weather shouldn't stop you from working out; you just have to take some extra precautions.

"A lot of times when you start your heavy breathing, you start going in and out of your mouth. So it's something you need to be careful with," said Leslie Williams, Trainer.

Trainers also say when it's cold, you should warm up inside for five to ten minutes before taking your workout outside. And if you are just starting get back in shape, you need a doctor's approval before you expose your body to such cold temperatures.

Make sure you drink enough water. Experts recommend about 15 to 20 ounces every hour.