Amyloid-beta proteins created in the liver are carried in the blood by lipoproteins to the brain. This results in neurodegeneration, brain atrophy, and inflammation, which are common features of Alzheimer's disease.
Reductions in reaction time, memory, and other neuropsychological problems persist for at least seven days following a ten-day period of insufficient sleep.
A new genetics study reveals shared genetic sites relevant to facial shapes and features between Tanzanian children and Europeans, suggesting the genetic basis for human face shape is partly shared across different populations.
Those who subscribe to the theory of Social Darwinism tend to be more hostile to others, admire power, are more exploitative, and have lower self-esteem, researchers say.
A new study found a person's math ability was linked to levels of GABA and glutamate in the brain. In children, greater math fluency was associated with higher GABA levels in the left intraparietal sulcus, while lower levels of GABA were linked to math ability in adults. The reverse was true for glutamate in both children and adults.
A new study demonstrated dogs do not reciprocate food-giving, nor do they act more favorably toward a friendly human.
Light therapy activates the circadian rhythm associated Per1 gene in the lateral habenula, a brain area associated with mood regulation.
Depleting the protein ADORA2B from the blood of mice led to faster cognitive decline, decreased auditory processing, and increased brain inflammation.
The connection between brain activity during sleep and cerebrospinal fluid flow was reduced in those with risk factors for dementia and those with Alzheimer's disease than in the healthy control group.
Adults over 80 who maintained a healthy lifestyle, including exercise and diet, had a lower risk of cognitive decline, even if they had genetic risk factors for dementia.
Disruptions in how the body converts cholesterol into bile acids may play a key role in the development of dementia.
The cerebellum underwent evolutionary changes that may have contributed to the development of language, culture, and tool use in humans, a new study reveals.
