In the context of the Melanotan II pathway, this is relevant because Melanotan II is a melanocortin receptor agonist, and MC1R is one of the receptor-family members that responds to melanocortin-related signaling
Biomedicines 10 (9), 2306 (2022)
Parving HH, Lehnert H, Brochner-Mortensen J, Gomis R, Andersen S, Arner P, et al
But they do converge metabolically: both increase fatty acid mobilisation from adipose stores and both shift substrate utilisation away from glucose
This shuts down melatonin production for the day, increases melatonin production for the next night, and improves sleep quality.[ref] Brighter lights during the day when working inside can increase melatonin at night.[ref] Eat on a regular schedule