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American Red Cross (784 words) |
 | Heat index: A number in degrees Fahrenheit (F) that tells how hot it really feels when relative humidity is added to the actual air temperature. |
| Although heat cramps are the least severe, they are an early signal that the body is having trouble with the heat. |
| Heat exhaustion: Heat exhaustion typically occurs when people exercise heavily or work in a hot, humid place where body fluids are lost through heavy sweating. |
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Infra Red Heat: potential Health Benefits (5004 words) |
| Radiant heat is simply a form of energy that heats objects directly through a process called conversion, without having to heat the air in between. |
| Heating of one area of the body produces reflex-modulated vasodilatation in distant-body areas, even in the absence of a change in core body temperature; i.e. |
| heat one extremity and the contralateral extremity also dilates; heat a forearm and both lower extremities dilate; heat the front of the trunk and the hand dilates. |
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