As extreme cold weather grips large sections of the United States, people still need to work and live their lives. CNN wellness expert Dr. Leana Wen has guidance.

Over the next few days, when wind chills could drop to minus 30 or minus 40 degrees, the cold can quickly become harmful to your health.

Power outages and prolonged exposure to frigid temperatures carry a risk of hypothermia that cannot be ignored ...

An Extreme Cold Watch has been issued for all of Central Florida this weekend as some of the coldest air in years moves into the area. Temperatures will be below freezing, so remember the 5 Ps!

It's no shock when we head below zero during a Minnesota winter. But the first blast of that showing up before Christmas? When it's still technically fall? Not unheard of, but definitely more unusual.