SCIENTISTS SAY THEY'VE FIGURED OUT HOW TO REGENERATE KNEE CARTILAGE

Summary from the TLDR newsletter

Scientists at Northwestern University have invented a goo that could open the door to regenerating human knee cartilage. The goo mimics the chemical structure of cartilage. Animal subjects who had their joints treated with the biomaterial grew new cartilage within six months. If the goo works in humans, it could benefit people who need knee replacement surgeries, athletes who experience ACL tears, and people who suffer from degenerative diseases like arthritis.