Study links abnormally high blood sugar with higher risk of death in COVID-19 patients not previously diagnosed with diabetes

New research from Wuhan, China shows that, in patients with COVID-19 but without a previous diagnosis of diabetes, abnormally high blood sugar is associated with more than double the risk of death and also an increased risk of severe complications.

Is what I see, what I imagine? Study finds neural overlap between vision and imagination

Researchers report the results of a study using artificial intelligence and human brain studies to compare brain areas involved in mental imagery and vision. Their findings suggest that mental imagery and vision are similar, but that low-level visual areas are activated in a less precise manner with mental imagery. This suggests that the brain is more tuned and sensitive to what it sees than what it imagines.


One of the first patients I admitted as an intern was a duck sculptor from the Outer Banks of North Carolina. She was an animated woman in her seventies, with an engaging smile, who had always been in good health. On the afternoon of admission, she greeted me warmly and told me about the workshop where she crafted and sold her duck creations. She was also an accomplished duck caller, skilled at replicating the sounds of the birds she sculpted. That evening she captivated the attention of all those present, her air-piercing duck calls reverberating down the medicine ward.

Extraordinary regeneration of neurons in zebrafish

Biologists have discovered a uniquely rapid form of regeneration in injured neurons and their function in the central nervous system of zebrafish. They studies the Mauthner cells, which are solely responsible for the escape behavior of the fish, and previously regarded as incapable of regeneration. However, their ability to regenerate crucially depends on the location of the injury.