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Essential Tips for Safe Exercising in Hot Weather

As temperatures climb, outdoor exercisers often skip vital precautions. Drawing from sports science, here are proven tips to stay safe and perform at your best.

Training in heat demands extra effort from your body to dissipate warmth—through dilated skin blood vessels and increased sweating.

Read also: 'Is it wise to exercise when it's hot?'

Blood Vessels

Dilation sends more blood to the skin for cooling, but muscles get less oxygen and nutrients as a result. Expect slightly reduced performance compared to cooler conditions.

Sweating

Evaporating sweat cools your skin and blood effectively—unless high humidity hinders it, disrupting your body's thermal balance.

Tips for Safe Exercise in Hot Weather

  • Wear thin, breathable clothing (light colors preferred);
  • Don sunglasses, a cap, and high-SPF sunscreen;
  • Avoid hot asphalt—stick to shaded paths under trees;
  • Drink before thirst hits; your body needs fluids preemptively;
  • Hydrate well before, during, and after. Excess over 1 liter per hour won't be absorbed;
  • Know your heart rate rises 5-15 beats per minute higher than usual.