"In a 2023 study, researchers in Brazil found that fruit flies that were sleep deprived showed overexpression mostly of genes that affected metabolism, glucose, triglyceride and levels of the hormone dopamine"

"After just one day of restricting sleep in mice, Rogulja could see fats in the animals’ intestines that weren’t entering circulation. After five days, their guts were filled with fat although their bodies were starved of nutrients."

This is interesting. People with Autism and ADHD often have gut issues and problems with dopamine etc. Maybe these deceases are caused by constant sleep deprivation.