ScienceSchool starts too earlyTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoScience11/28/2020November 28, 2020A lot of teenagers have trouble getting up early – due to their hormones. Studies show that their sleep rhythm shifts to later during puberty. A high school in Germany has introduced a new concept to take this into account. https://p.dw.com/p/3ln1NAdvertisement