Recent research has shown that sleep allows for the clearing of toxic substances from the brain. It does this through the glymphatic system, which is the brain's equivalent of the lymphatic system.

The rate-limiting step for cytokinin biosynthesis involves a group of isopentenyltransferase (IPT) enzymes.

This past week[…] Republicans completed their journey through the looking-glass, spinning a new counternarrative of that deadly day. No longer content to absolve Mr. Trump, they concocted a version of events in which those accused of rioting were patriotic political prisoners and Speaker Nancy Pelosi was to blame for the violence.

A bird’s-eye shot of the thighless legs of a seated figure is also common.