The study says sleep quality is also affected. I have doubts about this transmission mechanism, but it is an idea made for speculative fiction with a Gothic tin

The study says sleep quality is also affected. I have doubts about this transmission mechanism, but it is an idea made for speculative fiction with a Gothic tinge. It's like a light version of vampirism without all the blood: they kiss you (for a while), and you become morose and nocturnal.