Neuroscience

Sexual hormone oestradiol protects female brain in mid-life

Recent research suggests that increased visceral fat—that is body fat surrounding a number of important internal organs such as the liver, pancreas and intestines—carries the risk of cognitive impairment in later life. ...

Psychology & Psychiatry

Brain scans appear to show changes associated with violent behavior

A brain imaging study suggests that men with a history of violent behavior may have greater gray matter volume in certain brain areas, whereas men with a history of substance use disorders may have reduced gray matter volume ...

Medical research

Cancer stem cells made, not born

In cancer, tumors aren't uniform: they are more like complex societies, each with a unique balance of cancer cell types playing different roles. Understanding this "social structure" of tumors is critical for treatment decisions ...

Neuroscience

Volume of grey matter may predict degree of altruism

What makes a person altruistic? Philosophers throughout the ages often pondered the question but failed to get concrete answers. New research from the University of Zurich in Switzerland shows that the answer may lie in our ...

Neuroscience

Knowing one's place in a social hierarchy

When you start a new job, it's normal to spend the first day working out who's who in the pecking order, information that will come in handy for making useful connections in the future. In an fMRI study published December ...

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