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 Much Water Is There In A Cloud? The Physics Of Baseball Pitches How Many Dimensions Does The Universe Have? 7 Google Maps tricks only power users know about Recharging without cables: the road ahead for electric cars Universal Basic Income Explained – Free Money for Everybody?