Neuroscience

Distinguishing REM sleep from other conscious states

(Medical Xpress)—Despite decades of research, little is known about the function of REM sleep, or the dreams that often accompany it. Rapid eye movements occur in most mammals, with a few exceptions like echidnas and dolphins. ...

Diseases, Conditions, Syndromes

Severe COVID-19 is a thrombotic disease, study claims

Blood clotting (thrombosis) in the capillary vessels of the lungs is one of the first consequences of severe COVID-19, even preceding the respiratory distress caused by diffuse alveolar damage, according to a Brazilian study ...

Diseases, Conditions, Syndromes

For people with diabetes and COVID-19, blood sugar control is key

A study reported in the journal Cell Metabolism on April 30 adds to the evidence that people with type 2 diabetes (T2D) are at greater risk of a poor outcome should they become infected with the virus that causes COVID-19. ...

Medical research

Researchers link cell division and oxygen levels

Cells grow abundant when oxygen is available, and generally stop when it is scarce. Although this seems straightforward, no direct link ever has been established between the cellular machinery that senses oxygen and that ...

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