Time change: expert warns of long-lasting effects

The last time conversion is not quite two weeks – and while some people have already out in the winter time accustomed, others are still below it.

Your internal clock has not changed yet, some of the weeks or even months can take.

A plea for the abolition of the time change

The time change was originally introduced to save energy, but it turns out that the alleged savings are expected to be only very low.

No wonder there are more and more people are in favour of the abolition. In the case of an EU-wide survey, have spoken out in the past year, 84 percent of the participants for the end of the time changeover in the EU.

The EU Parliament voted in March 2019 in favour of the time change, indeed to abolish, 2021, the clocks should be changed for the last Time. The EU Commission even went a step further and suggested this step for 2019.

After the deadline for this year has already passed, it seems but as of yet no solution for 2021 abzuzeichen. The reason is that The relevant EU transport Ministers are not able to agree on a uniform time. To avoid a patchwork quilt, to EU-wide permanently on either the summer or the winter time.

Politicians are still divided in what time in the future or whether the time adjustment should remain due to the high organisational effort but receive.

Experts argue, however, call for an end to the time change.

Also Beth Ann Malow, Professor of neurology and Pediatrics in the Department of sleep disorders at the Vanderbilt University Medical Center, evaluated various studies at the time of conversion belongs to.

Decreased Alertness

Together with other scientists in an article in the Journal of the American Medical Association ‘publishing, to the conclusion, that it is not at the time of conversion only twice an hour per year.

Rather, it will come to have a profound impact on the biological clock – and that for eight months of the year.

“The biological clock is structurally rooted in the brain and affects functions such as energy and alertness,” says Malow.

After the time change, the average sleep duration is shorter in adults by 15 to 20 minutes, which has an impact on the vigilance. Reduced vigilance has, in turn, an increased accident risk.

Negative effects of the time change

Further consequences of the time change, a disruption in the circadian rhythm, which can lead to decreased sleep quality. In addition, the expert cites as a further Argument for the abolition of the time change, the increased Occurrence of strokes and heart attacks.

“People think that the hour of Transition is no big deal and you can overcome in a day, but what they don’t realize is that your biological clock is ticking in sync,” she says.

And while some people are hardly affected by the time change, others are much more sensitive, including children with autism, which are partially compromised for months.

All of these arguments lead the expert to the conclusion that people would be more conducive to, abolish daylight savings time.


  • Malow, B. et al. (2019): Are Daylight Saving Time Changes Bad for the Brain? archived from the original on 07.11.2019: https://jamanetwork.com/journals/jamaneurology/fullarticle/2753446
  • European Commission (2018): consultation in the summer time: 84 percent of participants are in favour of abolishing the time change in the EU, retrieved on 07.11.2019: https://ec.europa.eu/germany/news/20180831-konsultation-sommerzeit_de

Cover Media, Meike Leyerle

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