Chronic stress can have adverse effects on both the minds and bodies of affected individuals. Past studies suggest that particularly stressful life events can also impact people's cognitive abilities, ...

Social interactions are deeply rewarding for many animals, including humans and rodents. These encounters are pleasurable because they trigger the release of the chemical dopamine in the brain, much ...

Researchers have identified the mechanism for why and how one brain region differs in size between male and female rats. The study found that immune system cells in the brains of females consume and ...