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Early life sleep is associated with longevity in Drosophila

Yeragi, E.; Brown, E. B.; Bernard, J.; Keene, A. C.

2025-12-09 neuroscience
10.64898/2025.12.05.692620 bioRxiv
Show abstract

Sleep is a universal behavior that is critical for brain function and physiological homeostasis. While growing epidemiological and experimental evidence suggests reduced sleep quality is associated with negative health outcomes, the causal relationship between sleep loss and reduced longevity remains poorly understood. Here, we examine sleep across the lifespan and its relationship to longevity in Drosophila melanogaster. We examined the associations between numerous components of sleep at different life stages to longevity. Early life sleep, but not middle and late-life sleep, was positively associated with longevity. Age-dependent changes in sleep were consistent but accelerated, when flies are housed under stressful conditions including nutrient and temperature stress. Further, pharmacological restoration of sleep in the first 10 days of life, but not at later time points, increases longevity. Together, this work provides a systematic investigation of how different components of sleep impact longevity and suggests early life sleep may be particularly important in promoting sleep across the lifespan.

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