January 1 rhymes, for some, with good resolution.

The challenge of "Dry January", the month without alcohol, has already been followed by millions of people.

Many studies show the benefits of this period of abstinence.

Skin, sleep, weight: Doctor Jimmy Mohamed, health columnist of Europe 1, takes stock. 

Who says new year, says good resolution.

Every year, the month of January is synonymous with challenge, that of "Dry January".

The principle is simple: do not drink a single drop of alcohol for a month, from the time of getting up on January 1st.

The opportunity, without guilt, to take stock of your consumption but also to improve your figure, sleep and skin.

Doctor Jimmy Mohamed, health columnist for Europe 1, explains the benefits of this period of abstinence.

"This alcohol-free month is a way to take a break from drinking and commit to a slightly more moderate, healthier relationship with the drink over the long term. This challenge has been around since 2013 and millions of people. have already participated in. Several studies show that you can benefit from it.

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The first: your skin will improve.

She will be brighter and have a better complexion.

You will also regain control of your consumption.

And in the long term, we realized that the participants were consuming, even after the end of January, a little less alcohol.

Weight loss, improved sleep

At the same time, you will even lose weight.

Drink or lose weight, you have to choose, because alcohol is very high in calories.

One glass of wine is equivalent to three or four lumps of sugar.

Consuming alcohol also slows down the elimination of fat and promotes its accumulation in the belly - a rather cartoonish symptom of beer drinkers.

Eliminating alcohol is 10 to 30% less calories.

A significant amount for those who want to lose weight quickly. 

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Another improvement is sleep.

When we drink alcohol we sometimes tend to fall asleep.

However, in the long term, alcohol will disrupt our biological clock and therefore drinking less means sleeping better.

For those who do not want to participate in this challenge, it is recommended to follow the following rule for controlled alcohol consumption: two drinks a day, and not every day. "