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Fatigue, headache among top lingering symptoms months after COVID

Fatigue and headache were the most common symptoms reported by individuals an average of more than four months out from having COVID-19, investigators report.

Neuroimaging study reveals fatigue-related differences by age and gender

To study the relationship between age and fatigue, researchers conducted a novel study using neuroimaging and self-report data.

No, the human brain did not shrink 3,000 years ago

Did the 12th century B.C.E. — a time when humans were forging great empires and developing new forms of written text — coincide with an evolutionary reduction in brain size? Think again, says a team of researchers whose new paper refutes a hypothesis…

When a task adds more steps, this circuit helps you notice

By tracking feedback during tasks, the anterior cingulate cortex notices when a new step has become necessary and signals the motor cortex to adjust, a new neuroscience study shows.

How bat brains listen out for incoming signals during echolocation

Neuroscientists have discovered a feedback loop that modulates the receptivity of the auditory cortex to incoming acoustic signals when bats emit echolocation calls. The researchers show that information transfer in the neural circuits involved switche…

A brain mechanism underlying the evolution of anxiety

New research using genome editing technology has allowed scientists to create a model and assess a gene mutation associated with neuropsychiatric disorders in humans. The study has revealed how the mutation functions in the brain and affects anxiety an…

A new therapeutic drug for Alzheimer’s disease without inflammatory side effects

Although Aduhelm, a monoclonal antibody targeting amyloid beta (A?), recently became the first US FDA approved drug for Alzheimer’s disease (AD) based on its ability to decrease A? plaque burden in AD patients, its effect on cognitive improvement is st…

Our brain is a prediction machine that is always active

Our brain works a bit like the autocomplete function on your phone — it is constantly trying to guess the next word when we are listening to a book, reading or conducting a conversation. Contrary to speech recognition computers, our brains are constan…

Social isolation and loneliness increase the risk of death from heart attack, stroke

Social isolation and loneliness are prevalent in the U.S., and they have harmful effects on heart and brain health. Older adults and people in socially vulnerable groups, such as individuals from disenfranchised racial or ethnic groups, people with dis…

The brain already benefits from moderate physical activity, study shows

Even moderate physical activity has a positive effect on the brain. Researchers deduce this from examinations of 2,550 participants of the Bonn ‘Rhineland Study’. According to the study’s findings, certain areas of the brain are larger in physically ac…