Summer time begins: Our health is so at risk!

On Sunday, March 30, 2025, summer time begins in Germany. At 2 a.m., the clocks will be presented to 3 a.m., which makes the night shorter and it stays bright in the evening. This time change has the goal of better use daylight, especially in the evening. The summer time was originally introduced for energy saving, whereby it is controversial whether this effect is still there today.

The time change regularly causes discussions among the population. Children, older people and shifters in particular feel the changeover strongly. Experts advise you to gradually adapt in the days before the changeover, for example through earlier bed times. Summer time applies until last Sunday in October when the normal time (winter time) is resolved. Many people are happy about the longer evenings that enable activities such as walks and grill evenings.

Health effects of the time change

The time change in Germany takes place twice a year and is one hour each. The changeover to summer time in particular has health effects because an hour of sleep is lost. The body is sensitive to this change, which can lead to sleep disorders, cardiovascular diseases, migraines and concentration disorders. A DAK survey from March 2024 showed that 30% of the Germans report on tiredness and sleep disorders after the time change, with women and people aged 45-59.

In addition, a study by the Kiel pain clinic from 2025 shows an increase in migraine attacks a week after the summer change, especially on assembly. There is also indications that the number of heart attacks increases after the time change; A 2014 US study documented an increase of 24% on Monday after the changeover. Men and people who take cardiac medication are particularly affected. Numerous sleep doctors and chronobiologists are in favor of the abolition of the time change, since the majority of Germans are considered "owls" who are later active. A normal time would support this biorhythm.

The internal clock controls important body functions and reacts to external lighting conditions. Around 10% of the genes are dependent on the day, which also affects health. Studies show that wounds that are suffered during the day heal 60% faster. The internal clock of organs such as intestine and liver must work synchronously to avoid health problems.