Human saliva contains a painkiller called Opiophin that is roughly 6 times more powerful than morphine. – WTF Fun Facts
Source: https://www.nature.com/news/2006/061113/full/061113-4.html
WTF Fun Fact – Opiophin
Opiophin
Human saliva contains a painkiller called Opiophin that is roughly 6 times more powerful than morphine. – WTF Fun Facts
Source: https://www.nature.com/news/2006/061113/full/061113-4.html