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Sleep Predates Complex Brains
- Simple animals like jellyfish and hydra exhibit sleep-like disconnection and reduced responsiveness.
- Dragana Rogulja argues this shows sleep is ancient and widespread across animal life.
Sleep Is A Whole-Body Phenomenon
- Sleep regulation and benefits extend beyond the brain to other body tissues and signals.
- Dragana Rogulja notes that signals from other body parts can both regulate and benefit sleep.
Gut Oxidation Links Sleep Loss To Death
- In sleep-deprived flies, reactive oxygen species (ROS) massively accumulate in the gut before death.
- Dragana Rogulja links this gut oxidative stress spike to the timing of mortality in deprived flies.