Discover 25 insane addictions you won't believe are real, from eating ashes to tanning. Explore the bizarre world of ...

Add Yahoo as a preferred source to see more of our stories on Google. Are you curious about the world's most unusual habits? People can get hooked on things you might never even consider addictive.

‘Instead of going behind the bike sheds for a cigarette, kids are going behind the bike sheds for a ketamine hit.’ As far as warnings go, this from a psychologist who supports young addicts, is a ...