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 smart are orangutans? We Have Reached A Disturbing Milestone in Climate Change Here’s how Trump’s nuclear “button” actually works… Can We Live Forever? There’s A New Form Of Matter That Exists In Four Dimensions! Why Do Our Hair And Eye Color Change?