With temperatures expected to dip below freezing, Brooklyn residents are urged to bundle up and take precautions.

For residents who have to be outside, doctors say layering is the key to keeping warm. They say wearing layers keep vital organs like the heart from dipping below normal body temperature. Doctors also say to wear hats and gloves, which can prevent frostbite and take frequent breaks from the cold.

City officials say Brooklyn landlords are required to provide an adequate amount of heat to tenants. The Department of Housing Preservation and Development has established guidelines. They recommend checking in on elderly neighbors. Related Link: The City of New York Department of Housing Preservation and Development