As America's waistline expands, our sex lives get more complicated. At least, that's what journalist Sarah Varney found on her quest to discover how America's growing obesity rate is affecting our love lives. Since two-thirds of Americans are overweight or obese, how does that affect our relationships in dating and the bedroom? Varney joins Forum to talk about her new book, "XL Love: How the Obesity Crisis is Complicating America's Love Life."

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