"There is nothing that involves only going without returning.

It is the nature of Heaven and Earth

When there is going, there also must be returning."

"To maintain the center of the circle is to respond inexhaustibly."

 

Heat exhaustion

Heat exhaustion is one of the heat-related syndromes, which range in severity from mild heat cramps to heat exhaustion to potentially life-threatening heatstroke.

Signs and symptoms of heat exhaustion often begin suddenly, sometimes after excessive exercise, heavy perspiration and inadequate fluid intake. Signs and symptoms resemble those of shock and include:

bulletFeeling faint
bulletNausea
bulletAshen appearance
bulletRapid heartbeat
bulletLow blood pressure
bulletHot, red, dry or sweaty skin
bulletLow-grade fever, generally less than 104 F

If you suspect heat exhaustion:

bulletGet the person out of the sun and into a shady or air-conditioned location.
bulletLay the person down and elevate the feet slightly.
bulletLoosen or remove the person's clothing.
bulletHave the person drink cool water, not iced, or a sports drink containing electrolytes.
bulletCool the person by spraying him or her with cool water and fanning.
bulletMonitor the person carefully. Heat exhaustion can quickly become heatstroke. If fever — especially greater than 104 F, fainting, confusion or seizures occur, dial 911 or call for emergency medical assistance

 

By Mayo Clinic staff