Caffeine is not only found in coffee, but also in tea, chocolate, energy drinks, and many soft drinks, making it one of the most widely consumed psychoactive substances in the world. In a study published in Nature Communications Biology, a team of researchers from the Université de Montréal has gained new insights into how caffeine […]
Too Much Sleep Can Impair Cognitive Performance, Especially in People With Depression
It is actually possible to sleep too much. A study led by researchers at the University of Texas Health Science Center (UT Health San Antonio) shows that nine or more hours of sleep per night are associated with poorer cognitive performance. This is even more true for people with depression. The findings were derived from […]
Sleep Apnea During REM Seep is Associated with Brain Changes Linked to Memory
According to a study published online in Neurology®, the medical journal of the American Academy of Neurology, obstructive sleep apnea, a condition that causes low oxygen levels during sleep, is associated with the degeneration of brain regions related to memory. The study found that the changes in the brain were strongly related to the extent […]
Adolescents People Who Sleep Longer Perform Better in Cognitive Tasks
Young people who sleep longer—and go to bed earlier—than their peers tend to have better brain function and perform better on cognitive tests. This is what researchers from the UK and China have found. However, the study of young people in the US also showed that even those with better sleep habits did not get […]
Association Between Lower Proportions of Certain Sleep Phases and Brain Changes Associated With Alzheimer’s Disease
New research indicates that lower proportions of certain sleep stages are associated with reduced brain volume in regions vulnerable to the development of Alzheimer’s disease over time. The results show that individuals with lower proportions of time spent in deep sleep and rapid eye movement sleep had lower volumes in critical brain regions, particularly in […]
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