Step 1: Understanding the Concept:
Heatstroke is a medical emergency that occurs when the body's internal cooling system fails under extreme heat.
Step 2: Detailed Explanation:
Signs and Symptoms:
- High body temperature (often above $104^{\circ}$F).
- Mental confusion, slurred speech, or loss of consciousness.
- Hot, red, and dry skin (lack of sweating).
- Rapid pulse and throbbing headache.
First Aid Steps:
1. Call for Help: Call an ambulance immediately.
2. Move to Shade: Get the person out of the sun and into a cool, air-conditioned room.
3. Cool Rapidly: Spray them with cool water, use a fan, or apply ice packs to the armpits and neck.
4. Positioning: Lay them flat with legs slightly elevated to improve blood flow.
Step 3: Final Answer:
Heatstroke requires immediate professional medical attention. The goal of first aid is to bring the core temperature down as quickly as possible to prevent brain or organ damage.