The Brain

Exercise clears the mind. It gets the blood pumping and more oxygen is delivered to the brain. This is familiar territory, but Dartmouth’s David Bucci thinks there is much more going on. “In the last several years there have been data suggesting that neurobiological changes are happening—[there are] very brain-specific mechanisms at work here,” says [...]

The human brain is the center of the human nervous system. It has the same general structure as the brains of other mammals, but is larger than expected on the basis of body size among other primates. Estimates for the number of neurons (nerve cells) in the human brain range from 80 to 120 billion. [...]

A new study from Brigham and Women’s Hospital found that certain types of fat were associated with worse memory and overall cognitive function Boston, MA–It has been known for years that eating too many foods containing “bad” fats, such as saturated fats or trans fats, isn’t healthy for your heart. However, according to new research [...]

Journalist David McRaney discussed his book, You Are Not So Smart, in which he reveals the myriad ways human thinking is irrational and self-deluded. Click here to listen to the interview.

Intelligence represents an interaction between genes and environment. Genes for abilities may not be totally additive, a concept known as emergenesis. Hundreds of genes may contribute a small amount of variance to a particular trait like reading disability. By determining a child’s genetic risk, interventions specific to a particular disability can be put in place.

‘How reading in a second language protects your heart’ Psychologists at Bangor University believe that they have glimpsed for the first time, a process that takes place deep within our unconscious brain, where primal reactions interact with higher mental processes. Writing in the Journal of Neuroscience (May 9, 2012 • 32(19):6485– 6489 • 6485), they [...]