I'm climbing into a vehicle that has a powerful influence on our culture. I'd like to make it do something good. The media is populated with attorneys, psychologists and pundits but there are only three physicians: me, Dr. Oz and Sanjay Gupta. We are the only MDs who practice medicine and have board certifications in one or two fields. That's it.

I'm not a Twitter fan. I do it because I feel responsible to the two million people that follow me, but Twitter to me is just another thing I have do. And it's mostly a place for people to attack and abuse you. I don't really get much out of it, personally. I get hundreds of demands to answer the kind of medical questions that require three years of treatment to assess, yet people are furious when I don't solve their problems in 140 characters. It's really stunning.

We start with people who are motivated to get paid and be on TV, and we end up with people who have been transformed by the experience and go on to embrace sobriety. If they relapse, like most of my patients do, we continue to support and treat them. I'm thrilled that five out the eight [Celebrity Rehab cast members] showed up for after-care, and two more committed to coming back.

The experience we all share and the outcomes, which have been remarkable in a way I never could have predicted. Taking unmotivated people - maybe marginally motivated to get on TV and make money - and ending up with a group that values and is changed by the treatment process and wants to share it with other people.

I have a little theory about that, too. It's clearly envy. It's bringing people down to your size. It's a narcissistic impulse that didn't used to exist, but we've become increasingly narcissistic as a society, and envy is one of those outcomes.

It's bizarre to me that you can have political commentators, sports commentators, weather commentators, but with medicine, people go, "You can't do that."

Medications can lower a woman's sex drive and interfere with a woman's ability to climax. These medications include antidepressants, birth control pills and hormone medications. I only know of three antidepressants that do not interfere with a woman's sexual function.