I've had a quick look at the stats, and the research I have found says that the dying younger has nothing to do with being a night owl and everything to do with smoking and drinking.
I suggest that the drinking might also be behind the depression and more sexual partners. But I could be wrong. Anyways, you are in the same group as PRINCE!!! If you had shown me the list of people and asked which group I wanted to be in, I would have chosen the Prince group. As it is, I'm a Dolphin. A fun read with lots of lovely facts to boot. 💚