It also makes sense to take a closer look at the subject of light from different perspectives. It's about getting as much natural daylight as possible in the early morning. When this hits the light cells in the eyes, activating hormones are released on the one hand and the formation of melatonin, which is also known as the sleep hormone, is stopped on the other. 20 to 30 minutes is ideal, explains Dr. Phyllis Zee, a sleep researcher at Northwestern University in Chicago, according to CNN . Although natural daylight works best, school offices and classrooms should also be brightly lit in the morning. The light from so-called daylight lamps also helps some to wake up better in the morning.
here is the full article on ntv:
Gradually adapting the daily routine: How to prepare for summer time – n-tv.de
