Without giving too much away, here’s a short animation by Andreas Hykade that shows in a very simplistic way what drug addiction is sorta like.

The more the bird-like creature chases the high, the less he’s able to fly and the fall to earth gets bumpier each time. I’m not certain what the creature’s drug of choice is—it’s represented by a golden nugget—but I think it’s safe to say you can fill in the blank with anything addictive, even caffeine, gambling or an addiction to making money.

 
via reddit