Studies reporting novel therapeutic effects of psychedelic drugs are rapidly emerging. However, the reproducibility and reliability of these findings could remain uncertain for years. Here, we impleme...

Such a shift would “put us back in the dark ages in terms of our science,” says neuroscientist Anne Murphy, who helped to formulate the original policy.

The mandate from the Centers for Disease Control and Prevention follows an executive order from president Donald Trump, and applies to research not yet published.