In Cities Where It Once Reigned, Heroin Is Disappearing The rise of the more potent fentanyl in its place has put a generation of older users, who had managed their addiction, at far greater risk of overdose. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Brian Cox asked if 'intelligent life' inhabits our universe – his response is SURPRISINGEd Westcott, a Singular Eye at the Dawn of the Atomic Age, Dies at 97A Night at the Museum With Beer and SkullsFirst Photo of a Black Hole May Be Revealed. Here’s How to Follow the Announcement.Global Health: New York City Is Requiring Vaccinations Against Measles. Can Officials Do That?Black hole PICTURE release time: What time is the world's first black hole image revealed?