Thank you for posting this.
Insomnia was something that I've been dealing with for over 20 years. After diagnosis, I feel as if it were an early symptom. Then some days I wonder if it was the cause?!?!
I found it interesting that they mention melatonin as interfering with the dopamine pathways, and making motor symptoms worse.
I've been taking melatonin nightly for years. It really helps me sleep but maybe it's time to switch to something else!
I had read previously that melatonin was supposed to be a good thing for people with PD.