Temperature Control

Sweat & shiver

How does temperature Control work?

The hypothalamus keeps core temperature near 37 °C by sweating, shivering and widening or narrowing skin blood vessels.

Heat danger

Heat stroke — confusion, hot skin, collapse — is an emergency. Older adults, babies and outdoor workers are at higher risk.

Fever

A fever is the thermostat being turned up deliberately to help fight infection.

Evidence & sources

• Heat stroke is the most serious heat-related illness and is a medical emergency. Evidence: established. Known: Public-health guidance. Unknown: — Source: US CDC, Heat Stress — Heat Related Illness (Current revision).

Connected topics

• Hypothalamus
• Skin
• Hydration & Electrolytes
• Sodium
• Water
• Electrolyte Balance

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General education only, not medical advice. Drafted Oct 2026 · pending qualified expert review.