Researchers report genetic influences on head circumference remain stable during development and are correlated with genetic factors which contribute to intracranial volume.
Researchers report obesity and excessive body fat around the middle is associated with lower grey matter volume in the brain. The study also found a link between obesity and shrinkage in specific brain areas.
A new study reports bigger brain size could mean an increased risk of developing brain cancer. The reason, researchers say, is simple. Bigger brains have more brain cells, and thus a greater potential for cell mutations that lead to cancer.
A new study reports middle aged people with higher levels of the stress hormone, cortisol, have lower brain volume and a higher risk of memory impairment.
A new study reports female guppies with smaller brain mass can distinguish between attractive males, but do not find them more appealing or choose to mate with them over less attractive guppies. Researchers say the study sheds new light of the link between mate preference and cognitive ability.
Researchers report male guppies who live in an environment with predators have greater brain mass than those who live in a predator free environment. However, there is no difference in brain size for female guppies.
A new study reports the larger the growth of areas associated with thinking in the cortex, the slower the growth of regions associated with emotional, sensory and motor skills.
Researchers have identified a link between cortical surface area, height and cognitive ability. The study reports taller people have bigger cortices, which in turn is linked to better cognitive function.
Drexel University researchers reveal that while evolution may have allowed for bigger brains, some regions may not have kept up with the growth.
Dogs possess significantly more cortical neurons than cats, a new study reports.