(CNN) Summers are getting hotter, something we have seen multiple times in Europe recently. Heat waves are becoming more intense and more frequent, thanks to the climate crisis.

Your go-to cooling method might be to blast a fan in your face to help evaporate the sweat. However, a new study suggests that depending on where you live, fans might be doing more damage to your body than helping.

The study was published this week in the Annals of Internal Medicine , an academic medical journal published by the American College of Physicians.

It found the use of fans during hot, dry conditions worsened body temperature, heart rate, body sweat rate and thermal comfort. In contrast, fan use in hot, humid conditions improved all of these except body sweat rate. Blood pressure did not change in either heat wave condition.

Humidity is key

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