People who show low social engagement over long periods of time often show reductions in cognitive function. Studies of the brain may provide clues about this correlation.

Absence of human contact is associated with declines in cognitive function. But as the COVID-19 pandemic brings concerns about the potential harms of isolation to the fore, researchers are still hunting for concrete evidence of a causal role as well as possible mechanisms.

The researchers behind the results propose that an exercise-induced protein in circulation is responsible for the benefits.

The results are a proof-of-concept that the novel coronavirus can replicate in neurons, but it’s too soon to say whether this occurs in people with COVID-19.

SARS-CoV-2 generally attacks the lungs, but researchers are also stressing its effects on the brain in a fraction of patients.

A survey of hospitalized patients finds some suffer fatigue, ischemic stroke, delirium, and other symptoms.

The cell conversion strategy restores neurons and motor functions lost as a result of an induced Parkinson’s-like illness in the animals.

The Stanford University researcher charted the human sleep cycle and characterized numerous sleep disorders.