Human saliva is six times stronger than morphine Researchers have discovered a natural painkiller that’s six times more powerful than morphine, and it’s produced by human saliva. It’s called opiorphin — here’s what you need to know. Facebook Prev Article Next Article Discover Checkout these cool gadgets... Related Posts How F1 drivers calculate what speed to take a corner Plastic-eating enzyme created accidentally by scientists What Happens To Your Body When You’re Dehydrated? It’s Official Climate Change Is Here and NOW! Muscle Science – Pro Armwrestler VS Pro Bodybuilder How Could We Create A Second Earth?