Scientists have found the first compelling evidence that cognitive training can boost levels of a brain chemical that ...

MINNEAPOLIS – People in early middle age who have poor sleep quality, including having difficulty falling or staying asleep, have more signs of poor brain health in late middle age, according to a ...

Poor sleep in early midlife was associated with faster brain aging on MRI. Sleep quality at age 40 appeared to predict brain age 15 years later. People with more than three poor sleep characteristics ...