People who had fragmented sleep in their 30s and 40s were more likely to have worse cognition a decade later, longitudinal data showed. Those in the highest versus the lowest tertile of the sleep ...

Half a million Americans will be diagnosed with dementia this year. That represents a 42% jump in the risk that someone age 55 or older will develop the life-altering condition. In fact, an ...

A groundbreaking study published in the medical journal Neurology has revealed a critical link between feeling excessively sleepy during daylight hours and a pre-dementia condition known as motoric ...

Survey data showed that a third of Parkinson's patients reported a cognitive symptom soon after diagnosis. Most common were problems with memory, language or word finding, and concentration or ...

A new study is quantifying the harms of long COVID, showing that people with lingering symptoms of it can have cognitive deficits equal to losing intelligence quotient, or IQ, points. Researchers ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." We all have memory lapses and brain-foggy moments—that’s part of being human. We forget where we put down ...

New research shows that poor air quality could be causing cognitive problems in babies and toddlers. A new study reveals an association between poor air quality in India and impaired cognition in ...

A group of studies, all conducted independently, have reached a similar sobering conclusion: sleep problems—including several common sleep difficulties faced by millions of people on a regular ...

Delphine Raucher-Chéné is a member of the International Society for Bipolar Disorders, the Schizophrenia International Research Society and the Society for Research in Psychopathology. She has ...

Occasional use of classic psychedelics like LSD and psilocybin is not associated with cognitive decline and might actually be ...