Neuroscience

Dopamine primes the brain for enhanced vigilance

Imagine a herd of deer grazing in the forest. Suddenly, a twig snaps nearby, and they look up from the grass. The thought of food is forgotten, and the animals are primed to respond to any threat that might appear.

Genetics

Clock gene may connect mood and sleep

If you pull an all-nighter or stay up late to binge watch Game of Thrones, you will probably be grumpy the next day. But if you don't get enough sleep for weeks or months on end, you may develop depression or other lasting ...

Neuroscience

New reset button discovered for circadian clock

The discovery of a new reset button for the brain's master biological clock could eventually lead to new treatments for conditions like seasonal affective disorder, reduce the adverse health effects of working the night shift ...

Medical research

Shining light in the ears may alleviate SAD symptoms

(Medical Xpress) -- Millions of people experience depression and lower levels of energy in the winter due to seasonal-affective disorder (SAD), or the “winter blues.” Since the disorder is thought to arise due to ...

Diseases, Conditions, Syndromes

At least 14% of Americans have long COVID, research suggests

One in seven people in the US reported having had long COVID by the end of 2022, suggests a large-scale investigation of long COVID and symptom prevalence by academics at UCL and Dartmouth.

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