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Aby spać, nie trzeba mieć mózgu. Najnowsze badania pokazują, że nawet koralowce, organizmy pozbawione neuronów, zapadają w stan przypominający sen. Odpoczynek pozwala im naprawiać uszkodzenia DNA i utrzymać delikatną równowagę biologiczną.

A new study from Bar-Ilan University shows that one of sleep's core functions originated hundreds of millions of years ago in jellyfish and sea anemones, among the earliest creatures with nervous systems. By tracing this mechanism back to these ancient animals, the research demonstrates that protecting neurons from DNA damage and cellular stress is a basic, ancient function of sleep that began long before complex brains evolved.

Bar-Ilan University study shows that even jellyfish and sea anemones repair DNA during repose, underscoring the fact that a good snooze is an essential evolutionary tool for health