Even if the wearing of a mask is not compulsory for runners, some French people are worried about possible breathing difficulties during a run.

At the microphone of Europe 1, in the program "Sans Rendez-vous", Doctor Jimmy Mohamed addresses the question of the mask during physical exertion.

And twists the neck to a rumor about their dangerousness.

For several months, the mask has been invited almost everywhere in public space, including among joggers.

While it is not compulsory for the latter in the Paris region, it may be in some cities.

And some wonder about the disadvantages of wearing it during exercise.

This is the case of Eric, listener of Europe 1 and jogger of 39 years, who wonders if wearing a mask presents a danger during the race.

In the program

Sans Rendez-vous

, Monday, the doctor and columnist of Europe 1 Jimmy Mohamed answers him.

"No, wearing a mask is not dangerous. It is uncomfortable and, above all, it limits the life of the mask. When you run, you breathe much faster and therefore you will moisten this mask much faster than when you put it on to talk. At that point, since it is wet, it is porous and therefore less effective. It is no longer useful and therefore should perhaps go in the trash after a jogging session. 

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On the other hand, you are more likely to spread Covid-19 particles when you run than when you walk.

That said, in outdoor space, this risk is limited because you have a huge amount of air for a very small amount of virus.

It will dissolve in the air mass, so wearing the mask may not be necessary.

Lack of oxygen?

There is a rumor that circulates a lot: while walking and running, the mask could ultimately cause discomfort because its wearer could lack oxygen.

But this is not true.

Imagine a surgeon in the operating room wearing it for hours and hours.

They manage to make each other heard without a problem.

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If you ever have difficulty playing sports with your mask on and find that you are short of breath, take off your mask.

If you have the same difficulty, it is because you lack physical condition and it has nothing to do with sport without a mask.

Put one in if you are in a closed environment.

No danger with carbon dioxide

Some people wonder about the danger of becoming intoxicated with carbon dioxide.

It's crazy that we ask ourselves these kinds of questions about a prevention tool.

The carbon dioxide you exhale when you breathe is not toxic when in a mask, since you have leaks.

This carbon dioxide will therefore be diluted in the air and you risk absolutely nothing with your mask.

On the contrary, you will protect yourself and others. "