Botox for depression?

Apparently, you can’t be depressed if you can’t frown:

Dr. Finzi, who runs a private medical practice in Chevy Chase, Md., believes the patients felt better simply because they could not frown. “I think there has got to be some type of feedback between the muscles for facial expression and the brain,” said Dr. Finzi, whose study was published in the journal Dermatologic Surgery.