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New epigenetic mechanism revealed in brain cells

For decades, researchers in the genetics field have theorized that the protein spools around which DNA is wound, histones, remain constant in the brain, never changing after development in the womb.

Sleep deprivation could reduce intrusive memories of traumatic scenes

A good night’s sleep could be the wrong response to traumaA good night’s sleep has long been recommended to those who have experienced a traumatic event.

Statins ‘lower aggression in men but increase it in women’

Women who take the cholesterol-lowering drugs statins may experience increased aggression, a new study suggests, while men who take them may have reduced aggression.

St John’s Wort side effects warning

The popular herbal medicine St. John’s Wort, commonly used in the treatment of depression, has been found to cause the same adverse reactions as prescription antidepressants in a new study…

Rise in numbers of teenagers given antipsychotics

Teenagers between 13 and 18 are being treated more with antipsychotics, and mostly for conditions that do not involve psychosis, study suggests.

Placebos ‘relieve symptoms, improve treatments’

A new research paper hails the medical benefits of the placebo effect, describing how ‘dummy pills’ can relieve symptoms and make other treatments more effective.

Statins linked to lower aggression in men, but higher in women

In the first randomized trial to look at statin effects on behavior, researchers report that aggressive behavior typically declined among men placed on statins (compared to placebo), but typically increased among women placed on statins.

Brain activity predicts promiscuity and problem drinking

A new pair of brain-imaging studies suggest that researchers may be able to predict how likely young adults are to develop problem drinking or risky sexual behavior in response to stress. The research is part of the ongoing Duke Neurogenetics Study or …

Lifelong learning is made possible by recycling of histones, study says

A new mechanism that makes neuronal plasticity and, as a result, learning possible has been discovered by researchers. This discovery centers on a specific type of histone, proteins that support DNA and help control its expression.

Revised view of brain circuit reveals how we avoid being overwhelmed by powerful odors

Scientists report the discovery of a neural circuit in the mouse olfactory bulb that explains how our mammalian cousins (and by extension, we) are able to dial down powerful odor signals sampled from the environment, for the simple reason that they wou…