“Yeah, yeah, I’ve heard about this,” mutter these hypothetical naysayers. What do you mean an “otter” chronotype isn’t a thing?! Though much of what goes into one’s chronotype is hard-wired, it is possible to shift from morning person to more of an evening person and vice versa. Don’t go for a drastic, overnight chronotype makeover; change your bedtime and light exposure incrementally. If you need help determining your chronotype, consider taking an online quiz or investing in a sleep tracker.