The Shortlist for Oct. 4

Kristin Cavallari Explains Her Svelte Post-Baby Body

"I honestly can say I owe it all to breastfeeding." That's Kristin Cavallari, who brought a new life into the world two months ago, though you wouldn't know it from looking at her. "I read somewhere that it's like running six miles a day. I know nursing is difficult for a lot of moms, so it's easier said than done. I eat healthy in general, and I'm taking it easy in the gym and working out three to four days a week. Still, the new mom says she has some more work to do on the toning front. "I do want to tone up my stomach a little bit more. Trust me, if you saw me, I'm not ready for a bikini, let's just put it that way. … I'm close, but I haven't [lost all the weight]." (People)