# Delayed Sleep Phase Syndrome and ADHD - Author: **Sam Spadafore** - Document Tags: [[ADHD]], [[Delayed Sleep Phase Syndrome]] - [URL link](https://www.getinflow.io/post/adhd-delayed-sleep-phase-syndrome-connection#:~:text=ADHDers%20also%20have-,dsps%2C%20but%20which,-came%20first%3A%20the)  ## Highlights - Delayed Sleep Phase Syndrome (DSPS). ([View Highlight](https://read.readwise.io/read/01hcnqtv1feadyfp7f8y3tdrjq)) --- - Approximately [73-78%](https://www.aastweb.org/blog/attention-deficit-hyperactivity-disorder-and-delayed-sleep-phase-syndrome-may-be-linked) of ADHDers also have DSPS ([View Highlight](https://read.readwise.io/read/01hcnqw3k6jc5fp4ktwp52xe4e)) --- - The dopaminergic system is . . . under circadian control, and impaired retinal dopamine synthesis results in circadian rhythm fluctuations. ([View Highlight](https://read.readwise.io/read/01hcnqxtc74pjyet6m2avx8yhv)) ---