Generally, the body cools itself down through sweating . In hot climates, especially with high levels of humidity, sweating may not be enough at certain times , so that the body temperature can rise to dangerous levels (hyperthermia). Specifically, when the body temperature rises above 41ºC in a matter of minutes we speak of heat stroke . Symptoms can include red and dry skin, rapid pulse, dizziness, headache, and nausea. These elevated body temperatures can damage the brain or other vital organs. In heat exhaustion , which can precede heatstroke, the symptoms are profuse sweating, rapid breathing, and a fast, weak pulse.
Drinking plenty of fluids when the outside temperature rises, replenishing salts and minerals, and limiting exposure to heat can help prevent these problems.
