Which signs mean you should stop and cool down?

Start playing free

  1. Dizziness, nausea, or weakness
  2. Normal breathing after a rally
  3. A fast warm-up

🔒 The answer is for SESK members. Members see the answer, why it's right and the official sources for every card of Stuff Every Tennis Player Should Know, plus timed practice exams.

The first 50 cards of every test are free to play.

Play the free cards See membership

Like this card?
Play the game

References

  1. CDC: Heat and Your Health www.cdc.gov/heat-health/about/index.html Checked 2026-10-12.

Think this answer is wrong? Tap "Challenge this answer" on the card in the game and tell us why.

Test yourself in the game