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The 5 a.m. morning routine is one of the current hypes on social media. But is it even realistic for the majority of people to get up at 5 a.m.? Are we all really more productive then? In this video I explain the different chronotypes and how they determine our day-night rhythm. Here are my main sources for the four chronotypes: https://www.psychologytoday.com/intl/... https://sleepdoctor.com/sleep-quizzes... In German: https://www.fitforfun.de/news/welcher... I have not found any scientific studies specifically on this newer classification.