Heat: Keep a close eye on your heart
Visible effects even in the brain
Additionally, researchers have highlighted a link between high temperatures and cognitive impairment, particularly in older people living alone or without air conditioning. Since the heart has more difficulty properly oxygenating the brain in extreme heat, impaired alertness, concentration, and even loss of consciousness can occur.
Working in hot conditions, an underestimated risk
People who engage in intense physical activity in the heat (workers, farmers, etc.) are particularly at risk. According to the French National Institute for Research and Safety (INRS), physical exertion combined with high temperatures increases the risk of heat stroke, heat exhaustion, and heart problems.
How to protect your heart during hot weather?
Simple actions can reduce these risks:
– Hydrate regularly, even when not thirsty;
– Avoid intense physical exertion during the hottest hours (12 p.m. – 5 p.m.);
– Stay cool (air-conditioned or shaded rooms);
– Limit alcoholic or caffeinated drinks, which promote dehydration;
– Watch for warning signs: palpitations, unusual fatigue, dizziness, shortness of breath.
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