# Three Ways to Get Used to Exercising in the Heat
Summer heat challenges young athletes and active kids in ways cooler months don't. When temperatures rise, bodies work harder to cool down, which means hearts pump faster and sweat flows freely. The good news: kids can adapt to heat and actually become stronger exercisers over time.
Heat adaptation takes about two weeks of consistent exposure, according to exercise science research. During this period, the body learns to sweat more efficiently, which lowers core temperature faster. Blood vessels also expand near the skin to release heat more effectively. Parents often notice their kids feel sluggish during the first few days of summer sports or outdoor play. This is normal. The fatigue passes.
**Start with shorter workouts.** Introduce heat gradually rather than jumping into full training sessions. A 15-minute walk or easy bike ride in afternoon warmth builds tolerance better than sudden intense activity. Gradually extend workout duration as kids adapt over days.
**Schedule activity strategically.** Early morning or late evening workouts expose kids to heat stress without overwhelming their systems. Once adaptation begins, kids tolerate midday activity much better. This timing approach lets bodies adjust gently.
**Hydrate before, during, and after.** Water intake matters most during heat adaptation. Kids should drink 16 ounces of water two hours before exercise, then sip 4 to 8 ounces every 15 to 20 minutes during activity. Electrolyte drinks work for sessions lasting over 60 minutes. Post-exercise rehydration helps muscles recover faster.
The payoff makes the adjustment worthwhile. Kids who acclimate to heat perform better in warm conditions than those who don't train in it. Their hearts beat slower during the same intensity workout. Endurance improves noticeably. Summer sports teams that train in heat see faster,