This weekend, France is changing to winter time. At 3 o'clock in the morning, the needles will have to be turned back since it will actually be 2 o'clock. What consequences for the brain? Who are the most vulnerable? Sylvie Royant-Parola, Sleep Psychiatrist and Chair of the Morphée Network was the guest from Europe 1.

INTERVIEW

This night at 3am, it will be only 2h. This is the traditional passage to winter time. And watch out for the effects of jet lag on sleep! This transition does not have the same effects on everyone. For Sylvie Royant-Parola, sleep psychiatrist and president of the Morphée network, interviewed on Europe 1, the most exposed are the youngest.

Even if this year, the change occurs during the holidays of All Saints, "it changes the meal times, it changes the bedtime and sunrise times and the biological clock in this population is quite rigid," says the specialist . And to continue: "Even an hour will change habits so the child will not be hungry at the right time, he will not sleep at the right time and he will not wake up with the same shape as usual" . Seniors are also sensitive to this time change or people with depression likely to relapse.

Night work: double punishment?

To prepare this moment "the best is to anticipate a few days before, to modify the schedules in the direction of the change of the clock of quarter of hour in quarter of hour, for four five days and like that one happens to be on time more naturally. "

Accidents, driving difficulties, people working at night are more affected than others by changes in hours. Lack of concentration or vision changes, drivers are often disrupted by the transition from daylight to darkness. Sylvie Royant-Parola recognizes it: "An hour it changes everything".

Towards the end of the time change?

How long will this time change last? MEPs voted on March 26 to mark the cancellation of the change of time. The French will, however, have to wait for the different EU states to coordinate by 2021. For the doctor "it's a plus to always be on the same rhythm because we have a body that is governed by clocks internal, which gives the tempo throughout the day for different activities and an hour of change, it really changes all important functions, such as food intake and sleep. A little patience so for the refractory to the change of time, who knows perhaps these last moments.

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