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Too much sleep can hurt cognitive performance, especially for those with depression

Sleeping nine hours or more per night is associated with worse cognitive performance, and it is even more the case for those with depression.

New insights into the energy balance of brain neurons

A research team has demonstrated how the energy levels of individual neurons in the brain change during so-called spreading depolarizations — waves of activity that occur in various brain disorders. The findings provide important foundations for under…

Vision loss, damage could be tied to eye pressure, study finds

One of the world’s leading causes of irreversible vision loss could begin with elevated eye pressure, according to a recent study.

Brain scans reveal what happens in the mind when insight strikes

That ‘aha’ moment when you come back to a puzzle and immediately figure it out? Something fascinating is going on in your brain. A new study using functional magnetic resonance imaging shows that these flashes of insight aren’t just satisfying — they …

Research shows how hormone can reverse fatty liver disease in mice

A pioneering research study details how the hormone FGF21 (fibroblast growth factor 21) can reverse the effects of fatty liver disease in mice. The hormone works primarily by signaling the brain to improve liver function.

Could a mini-stroke leave lasting fatigue?

A transient ischemic attack, also known as a mini-stroke, is typically defined as a temporary blockage of blood flow to the brain that causes symptoms that go away within a day, but a new study finds that people who have this type of stroke may also ha…

‘Sweet spot’ for focused ultrasound to provide essential tremor relief

For millions of people around the world with essential tremor, everyday activities from eating and drinking to dressing and doing basic tasks can become impossible. This common neurological movement disorder causes uncontrollable shaking, most often in…

Postpartum depression and bonding: Long-term effects on school-age children

Postpartum maternal mental health and mother-to-infant bonding are well-established as critical factors in a child’s psychosocial development. However, few studies have explored the combined impact of postpartum maternal depression and early bonding ex…

How the brain allows us to infer emotions

Researchers have discovered how inferred emotions are learned. The study shows that the frontal part of the brain coordinates with the amygdala — a brain region important for simple forms of emotional learning — to make this higher-order emotional ab…

Recognition from colleagues helps employees cope with bad work experiences

Being appreciated by colleagues can help employees cope with negative experiences at work, according to a new study. Researchers found that employees experience ‘embitterment’ — an emotional response to perceived workplace injustice — on days when th…