Researchers say laughter may have been preserved by natural selection to assist with human survival.
Rather than being simply a brain disease, researchers propose Alzheimer's disease could be a disorder of the immune system within the brain.
Not only did microbes diversify within early modern human hosts as they traveled and settled in different geographical locations, they also followed human evolution by limiting themselves to the gut.
Axolotls have the ability to regenerate brain areas following an injury. Researchers have mapped cell types and genes associated with neurodegeneration in the axolotl brain, discovering some similarities in the human brain. The findings could pave the way for new neurodegenerative therapies.
New findings put theories about personality associated with a sibling's gender under the microscope, reporting a sibling's gender may not be as influential on the development of personality traits as previously believed.
People high in narcissistic traits showed higher levels of verbal aggression, physical aggression, and other bullying behaviors. They often extend their aggression to innocent bystanders. Narcissism was associated with a 21% increase in aggression and an 18% increase in violent behaviors.
People actually process numbers faster when they are displayed vertically, with the smaller number at the bottom and larger number at the top.
Pessimism is a fundamental part of the human experience. Researchers say refusing to subscribe entirely to the social drive for the pursuit of happiness and embracing your pessimistic side may be the most reasonable attitude.
The "free energy principle" states every living thing, everywhere, minimizes free energy. Researchers question whether the "free energy principle" could be used to unify biology, psychology, and neuroscience.
Researchers explore the "red flags" we commonly associate with those who become mass killers, and how possible it is to identify the signs of problematic behaviors before a person commits a crime with multiple victims.