The Journal of Psychopharmacology published a study in 2016 in which researchers found that a one-time, single-dose of psilocybin offered rapid improvements in the levels of anxiety, depression and dread of death in cancer patients. A recent update found that the single dose, combined with psychotherapy, led to long-lasting improvements in these patients approximately five years later. Psilocybin, a compound found in psychedelic mushrooms, was given to patients in the study in 2016 and resulted in immediate, substantial relief of symptoms that was sustained and documented at their follow-ups more than six months later. Almost five years later, researchers found…

Experts don’t know yet because they’re still studying vaccinated people to see when protection might wear off. How well the vaccines work against emerging variants will also determine if, when and how often additional shots might be needed. “We only have information for as long as the vaccines have been studied,” said Deborah Fuller, a vaccine researcher at the University of Washington. “We have to study the vaccinated population and start to see, at what point do people become vulnerable again to the virus?” So far, Pfizer’s ongoing trial indicates the company’s two-dose vaccine remains highly effective for at least…