Medicine

A cheap nasal spray cuts COVID-19 risk by 62%
Your genes may impact psychedelic experiences 
Harvard scientists closer to solving centuries-old heart mystery
MIT engineers 3D-print rubbery brain implants that don’t “stab” the brain
How child mortality fell from 40% to 3.7% in 200 years 
Large study of 20,000 cats and dogs could help pets live longer 
Potential cause of unexplained epilepsy cases uncovered
The first FDA-approved clinical trial of psilocin has begun 
Nasal COVID-19 vaccines prepare for infection right where it starts – in your nose and throat
After death, you’re aware that you’ve died, say scientists