extreme heatheat illnessemergency
Tennis in Extreme Heat: Stop Signs That Matter More Than Toughness
Confusion, fainting, or abnormal behavior may call for an emergency response, not merely a short rest before resuming play.

Start with this check
When thermoregulation fails in a hot environment, heat illness can worsen rapidly; fitness, humidity, clothing, and hydration all affect the risk.
Try these steps in order
- Before play, check the temperature, humidity, available shade and water, and the emergency contact plan.
- If symptoms such as headache, nausea, chills, or dizziness appear, stop immediately and move to a cool place.
- For confusion, fainting, or altered consciousness, call emergency services and begin active cooling.
Bottom line
In extreme heat, the best decision is not how many sets you endured; it is stopping and cooling before danger escalates.
Reviewed sources
Technical evidence is shown separately from community topic signals.
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