Psychology & Psychiatry

Happiness and the evolution of brain size

During human evolution, the size of the brain increased, especially in a particular part called the neocortex. The neocortex enables us to speak, dream and think. In search of the causes underlying neocortex expansion, researchers ...

Genetics

Human brain size gene triggers bigger brain in monkeys

The expansion of the human brain during evolution, specifically of the neocortex, is linked to cognitive abilities such as reasoning and language. A certain gene called ARHGAP11B that is only found in humans triggers brain ...

Health

Paleo fact and fiction: The key to being healthy

Humans have conquered smallpox and drastically reduced child mortality rates, yet we now face problems never seen before. Conditions like heart disease, obesity, cancer, and diabetes pose serious threats to our health. How ...

Genetics

New clues into the genetic origins of schizophrenia

The first genetic analysis of schizophrenia in an ancestral African population, the South African Xhosa, appears in the Jan. 31 issue of the journal Science. An international group of scientists conducted the research, including ...

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