[GUEST ACCESS MODE: Data is scrambled or limited to provide examples. Make requests using your API key to unlock full data. Check https://lunarcrush.ai/auth for authentication information.]  Neuroscience News [@NeuroscienceNew](/creator/twitter/NeuroscienceNew) on x 504.4K followers Created: 2025-07-22 13:23:00 UTC Hunger Sharpens Sleep Rhythms That Solidify Memories New research explores whether the brain’s sleep rhythms that consolidate memories are fixed traits or dynamically influenced by experience. The study confirms that slow oscillations (SOs) and spindles — key brain waves during non-REM sleep — remain stable after learning tasks, suggesting they may reflect an individual’s inherent sleep architecture. However, evidence from rodent experiments reveals that fasting before sleep shifts SO–spindle timing, enhancing their alignment with memory-critical phases. This indicates that while age and biology set a baseline, metabolic factors like eating patterns can modulate these brain rhythms. Fasting also increased hippocampal ripple density, another signal linked to memory formation, without disrupting sleep structure. Together, the findings suggest that sleep rhythms supporting memory are partially flexible and influenced by recent experience.  XXXXXX engagements  **Related Topics** [brains](/topic/brains) [Post Link](https://x.com/NeuroscienceNew/status/1947648575002857764)
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Neuroscience News @NeuroscienceNew on x 504.4K followers
Created: 2025-07-22 13:23:00 UTC
Hunger Sharpens Sleep Rhythms That Solidify Memories
New research explores whether the brain’s sleep rhythms that consolidate memories are fixed traits or dynamically influenced by experience.
The study confirms that slow oscillations (SOs) and spindles — key brain waves during non-REM sleep — remain stable after learning tasks, suggesting they may reflect an individual’s inherent sleep architecture.
However, evidence from rodent experiments reveals that fasting before sleep shifts SO–spindle timing, enhancing their alignment with memory-critical phases.
This indicates that while age and biology set a baseline, metabolic factors like eating patterns can modulate these brain rhythms.
Fasting also increased hippocampal ripple density, another signal linked to memory formation, without disrupting sleep structure.
Together, the findings suggest that sleep rhythms supporting memory are partially flexible and influenced by recent experience.
XXXXXX engagements
Related Topics brains