Neuroscience

Asleep somewhere new, one brain hemisphere keeps watch

People who go to bed wary of potential danger sometimes pledge to sleep "with one eye open." A new Brown University study finds that isn't too far off. On the first night in a new place, the research suggests, one brain hemisphere ...

Psychology & Psychiatry

Is this peptide a key to happiness?

(Medical Xpress)—What makes us happy? Family? Money? Love? How about a peptide? The neurochemical changes underlying human emotions and social behavior are largely unknown. Now though, for the first time in humans, scientists ...

Health

Nursing professor claims teens are "sleep texting"

Nursing professor Elizabeth Dowdell, of Villanova University has reported in an interview with a CBS news affiliate in Philadelphia, that she has discovered a new phenomena she calls "sleep texting." She says it's just like ...

Neuroscience

Researchers find new origin of deep brain waves

University of California, Irvine biomedical engineering researchers have uncovered a previously unknown source of two key brain waves crucial for deep sleep: slow waves and sleep spindles. Traditionally believed to originate ...

Psychology & Psychiatry

Yoga nidra might be a path to better sleep and improved memory

Practicing yoga nidra—a kind of mindfulness training—might improve sleep, cognition, learning, and memory, even in novices, according to a pilot study published in the open-access journal PLOS ONE on December 13 by Karuna ...

Alzheimer's disease & dementia

Improving deep sleep may prevent dementia, study finds

As little as 1% reduction in deep sleep per year for people over 60 years of age translates into a 27% increased risk of dementia, according to a study which suggests that enhancing or maintaining deep sleep, also known as ...

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