An assumption of my new web show, cbsdoc.com, is that people are aching for mature discussions about health. This week I went to Central Park in New York City to talk to passersby about their sexuality, hoping to strike the right tone. I brought along two female gynecologists -- Dr. Lori Warren and Dr. Rebecca Booth -- experts who flew all the way from Louisville, Kentucky to help me out. Dr. Booth has written a book called The Venus Week: Discover the Powerful Secret of Your Cycle At Any Age that explains how hormones affect women from adolescence to menopause. Each has an active clinical practice and extensive experience talking to their patients about everything from memory loss following pregnancy ("my memory went out with the placenta") to plummeting libido. And as luck would have it, total strangers we met at Columbus Circle talked to us quite openly about those very problems, eager to hear some practical advice. I hope we accomplished our goal of talking about a sensitive subject in a grown-up manner.