Weirdly, smoking crack is not good for you

Amy Winehouse apparently has emphysema.

The Sunday Mirror quoted Mitch Winehouse as saying that Amy has an irregular heartbeat, and has been warned that she will have to wear an oxygen mask unless she stops smoking drugs.

"The doctors have told her if she goes back to smoking drugs, it won't just ruin her voice, it will kill her," Mitch Winehouse was quoted as saying. "There are nodules around the chest and dark marks. She has 70 percent lung capacity."

The 24-year-old soul diva collapsed at her north London home Monday after signing autographs for a group of fans and was taken to a London hospital for tests. She remained there all week.

This is not actually quite as awful as it sounds--I have about 70% lung capacity, and I not only stand, but belt 'em out at Karaoke. However, emphysema is degnerative; asthma isn't.