JACKSONVILLE, Fla. -- Frostbite and hypothermia are two things most Floridians are unfamiliar with.
This is the second day in a row Florida has seen temperatures below freezing, and it could cause problems for vulnerable groups.
"I put on a lot of clothes, layers and clothes, long johns, because it keeps the heat in," said Willy Addison.
For seniors like Addison and Minnie Stokes, they take different approaches to keep warm.
Stokes relies on her nearby senior center.
"To tell you the truth, it keeps me from running the heater all day and running it all night," said Stokes.
Dr. Vandana Bhide said seniors need to be extra careful “because their skin in thinner, because they can have circulation problems, diabetes.”
Children are also at risk, because they lose heat through their heads.
Doctors said if it’s too cold, our bodies go through stages. First, frost nip, where you feel tingly and numb. Then you hit frostbite.
"Sometimes we don't see the effects of frostbite till even days or weeks afterwards," said Bhide.
Bhide said its best for seniors and young kids to stay indoors.
Bhide said if you start feeling tingly and numb, you can stick your hands in warm water for 15 to 60 minutes until they warm up.