As summer approaches and temperatures rise, understanding and preventing heat exhaustion becomes crucial. Heat exhaustion occurs when the body struggles to cool itself, often due to prolonged exposure to high temperatures, high humidity, and strenuous activity. Symptoms include heavy sweating, weakness, dizziness, headache, nausea, muscle cramps, and a rapid heartbeat. If untreated, it can lead to heatstroke, a severe condition requiring immediate medical attention.