However, some research suggests that poor sleep could raise your risk of Alzheimer’s. A study published in November found ...

Brain waves can be manipulated whilst in rapid eye movement (REM) sleep, a sleep stage associated with memory and cognition, a new study from the University of Surrey finds. Novel technology ...

There’s been a surge of new research in this space. For instance, in a recent 2025 study in the Journal of Neuroscience, ...

Scientists think that deep sleep and rapid eye movement (or REM) sleep are particularly influential when it comes to brain health and dementia risk.

REM Sleep Behavior Disorder causes more than dream enactment—it’s a powerful clue to neurodegenerative disease risk.

Get more REM sleep by taking steps to get better sleep overall, experts say. (Getty Images) (SimpleImages via Getty Images) You did it!

But until now, understanding around its impact on the sleeping brain has been limited. In a recent study published in Communications Biology, researchers have revealed how caffeine interferes with our ...

ANDRZEJ KRAUZE I n 1959, two French scientists, Michel Jouvet and François Michel, recorded strange patterns of neural activity in the brainstem of sleeping cats. The brain waves seemed remarkably ...

The results of experiments in mice models were "astounding," said biochemist Suzanne Pfeffer of Stanford University.

The study revealed that even non-REM sleep, the deepest and most restorative stage, became more active under caffeine’s influence. Instead of slowing down, the brain continued processing as if ...

Brain imaging studies show unusual patterns of activity during these episodes, with parts of the brain associated with wakefulness activating while sleep-related neural patterns continue.