Demi Moore, age 45, was on the David Letterman Show last night and talked about how she's a great believer in leech therapy for detoxifying and staying young. She said leech therapy detoxifies your blood, as the leeches have a little enzyme that (when they bite on you) gets released into your blood. It acts as a blood thinner and helps optimize your health.

It's very open of her to talk about the extremes she goes to for youth and beauty, but overall it doesn't do much to imprint a healthy Demi-image in my mind.

Here's a photo of leech biting at work. See more at PBS.org.

Below is a video from the David Letterman show where she explains her leech therapy experience;