"Maybe 40 is the new 30," says TV's consummate California girl, 45. After splitting from husband Richie Sambora (their divorce was just finalized), the mom of daughter Ava, 9, just keeps getting hotter. So – the secret? Run, sun (strictly the fake variety) and fun. "I don't say, 'No more bread or pasta.' I just don't have five platefuls. I've always been a red-meat eater. I try to eat a little less and be aware."