A new study finds that sleep timing is linked to dementia risk, as people with weak circadian rhythms face a 2.5 times higher ...

Your daily rhythm may matter more for brain health than previously thought. Older adults with weaker, more disrupted activity patterns were far more likely to develop dementia than those with steady ...

Elevated dementia risks among older adults were associated with weaker and more fragmented circadian rest-activity rhythms ...

This coral keeps time without a brain, showing how distributed nerve nets can synchronize movement across an entire animal.