Humans experimented with mind-altering drugs 25,000 years ago

Betel nut use among hunter-gatherers may turn back the clock. More information Adding us as a Preferred Source in Google by using this link indicates that you would like to see more of our content in Google News results. An estimated 1-in-10 people around the world use betel nut today. Breakthroughs, discoveries, and DIY tips sent six days a week. By signing up, you confirm you are 16+, will receive newsletters and promotional content and agree to our Terms of Use and acknowledge the data practices in our Privacy Policy .