Feeling a little off? Don't forget: Like all animals, humans are seasonal creatures. Winter specifically can have a strong effect on your mind, behavior and libido.
From two psychologists who conducted an extensive survey of the research into wintertime blues:
https://theconversation.com/winter-brings-more-than-just-ugly-sweaters-heres-how-the-season-can-affect-your-mind-and-behavior-217350