But why can you get sunburned on cloudy days?

But why can you get sunburned on cloudy days?
But why can you get sunburned on cloudy days?

All summer long, Deuzio, the relaxation and leisure supplement of the newspapers L’Avenir, La DH and La Libre, answers a “health” question. This Saturday, July 6, a dermatologist explains to us why we get sunburn on cloudy days.

If every summer, we cross our fingers for the sun to come out, we often forget to protect ourselves from it. Even more so when the sky is overcast. However, even if the clouds are out, so are the UV rays.

“Clouds do not filter all wavelengths of light: some UV rays still pass through, even if we do not have the impression that brightness is important”, explains Bernadette Blouard, dermatologist in Namur and head of department at the Saint-Luc clinic in Bouge. So be careful to protect yourself well, at the risk of developing sunburn, or worse, melanoma.

1. When it is not hot

“People often equate UV exposure and sunburn with heat, when in fact they have nothing to do with it.recalls our expert. When there is no sun, people do not use any photoprotection because they do not feel like they are exposing themselves. However, the The radiation is very present, even if we perceive it less.”

And to remind you of the importance of a good day cream. “It is essential to use sun protection all year round. In winter, a good facial day cream contains an SPF of 30; in summer, it should contain an SPF of 50.”

“The most beautiful sunburns happen to us on the Belgian coast or in Brittany. With the wind and the clouds, we are active outside (walking, cycling, tennis) and we do not think about protecting ourselvesshe notes. Whereas when we go to Tunisia, Turkey or very sunny countries, we protect ourselves automatically. And since it is very hot there, we are also less exposed to the sun.”

2. When you are in the water

Planning to spend time by the sea? Beware of the sun’s glare. “This is more important on the water than on a deck or lawn.” Moreover, UV rays also pass through water. “We think that water protects us, but UV rays penetrate several centimeters into the water.” And to give the example of patients with sunburned buttocks and backs of thighs after a snorkeling session.

3. When you are in the mountains

Are you planning to stay in the mountains? Be aware that the concentration of rays there is higher than in our regions.

“At altitude, temperatures are often lower and so we feel like we’re less exposed since it’s not that hot, so we don’t think about protecting ourselves.”

In winter, the reverberation phenomenon also occurs on the snow, hence the sunburn on the face during the winter holidays.

4. When we put cream

Let the person who actually reapply sunscreen multiple times a day cast the first stone. And yes, there are undoubtedly far too many of us who only apply sunscreen once a day before heading out on an adventure. But for it to be truly effective, you need to reapply it every two hours, the dermatologist reminds us.

And while most creams are water-resistant, it’s still better to apply them more frequently when swimming. Moreover, anti-UV clothing is an adequate solution to protect yourself from the sun effectively when practicing water sports.

To complete the outfit, don’t forget the sunglasses. “Even with less sunny weather, it’s important to wear them.” Also, be careful to choose your glasses according to your destination.

Also consider wearing a head covering. “You absolutely must wear a bob or a hat, and avoid a cap which does not protect the edge of your ears which burn easily and which you forget to protect.” No question of removing the cap? So, don’t forget to protect them generously and frequently, she says. Finally, remember that long, light-colored clothing made from natural materials provides additional protection against the sun. Happy holidays!



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