[fraudsyndrome]

> a recent study found a physical cause for this - something about a genetic mutation that causes our sleep-signaling hormones to be created without the tails they usually have to navigate to the correct spots in the brain

I know someone who is currently going through the diagnosing phase, could you please link that study? Their GP mentioned that you could take medication to "work" through it in order to match societies "normal" times.

I don't know what a hormone "tail" means but if they have trouble navigating to the correct spots in the brain, how does it eventually find the correct spot? That reads to me like the hormone won't be able to navigate to the correct spot or it'll have trouble every time but from what I read those with DSPD do have a typical, consistent sleep time, it's just delayed (relative to the majority of people)