Your wake-up time prediction
To predict your wake-up time, we looked at 450 places in your DNA that are associated with being either a morning person or a night person. In addition to genetics, as you get older you're likely to naturally wake up earlier.
When does your internal alarm clock ring?
Our biological sleep rhythms affect when we naturally prefer to fall asleep and wake up. We looked at data from research participants and discovered genetic associations with being a morning person or a night person. Fittingly, self-described morning people tend to wake up earlier than self-described night people.