A Cold Bath or Shower
A cold bath or shower can lower your body temperature. Or, place a chilly washcloth on your wrist or neck. That's where blood vessels are closest to the skin, so you'll cool down faster.
Avoid the Top Floor
Hot air rises, so spending less time on the top floor of the house might keep you out of harm's way.
Turn Off Electronics
Electronics like televisions, lamps, and computers can raise a room's temperature. Put them to sleep or turn them off when they aren't in use.
Clean Your Air Conditioner
If you have air-conditioning units (window or central), clean the filters once a month and coils twice a year. Dirt can block airflow, reducing chill factor and bumping up your energy bill by up to 15 percent.