A comparative review of 324 global research papers concludes narcissism is a risk factor for aggression and violent behaviors. The results were similar, regardless of age, gender, education level, or country of residence.
While there is an association between obesity during midlife and an increased risk of Alzheimer's disease, researchers say the link doesn't necessarily extend into later life. A new study revealed higher genetic risk for Alzheimer's and lower BMI, especially in older men, was linked to an increased risk of Alzheimer's disease and predicted the disease progression.
Family members of people with dementia are more likely to experience severe pre-loss grief than family members of those with cancer.
Some traditional masculine stereotypes, such as being adventurous and competitive, were linked to being better fathers to infant children. This is especially true if men also adopt a nurturing role. However, one trait, hostile sexism, was not linked to improvements in parenting skills.
Immune cells in the uterus and placenta of stressed pregnant mice were not activated, but researchers found increased levels of inflammation in the developing fetal brain. Additionally, prenatal stress led to reductions in gut microbial strains and functions, especially in those linked to inflammation.
Using characters from "Game of Thrones", researchers investigated what happens in the brain when people immerse themselves in fiction. The study found the more people became immersed in a story, the more they "became" the fictional character while reading. This was reflected in activity changes in the ventromedial prefrontal cortex, an area of the brain associated with thinking about one's self.
Reducing stress in young mothers was associated with a decrease in fast food consumption and an improvement in dietary habits.
A new machine-learning algorithm is assisting researchers to determine which existing drugs can be repurposed effectively for other conditions.
A single dose of psychedelic treatments can help alleviate symptoms of depression, stress, and trauma in those who have experienced racial injustice.
In fiction, people are more likely to recall the deaths of characters perceived as "meaningful", rather than ones they considered to be "pleasurable".
Validating another person's negative emotions or experiences can help foster a more positive mental outlook.