Cameron Diaz's Sexy Oscar Night Arms: How She Did It
Cameron Diaz isn't afraid to get down and dirty when it comes to working out. The results? A svelte, defined upper body. Those arm and back muscles don't come easy; the 39-year-old puts in the hard work, whether it's staying active on vacation or flipping a truck tire up and down a football field! PHOTOS: How Stacy Keibler, Jennifer Lopez, and other Oscar standouts stay fit Intensive Training Those incredibly toned arms don't come easy; Diaz takes to tossing tires to keep her definition. "Exercise for me is like eating, sleeping, and breathing. I'm consistent, and when I'm not consistent, it shows up on my body," the Bad Teacher star has said . "I get really skinny, and I know it might sound like, 'Well, good for you.' But the body that people talk about is not me trying to stay slim, it's the one where I work hard to keep weight on me." Golfing Golfing burns 266 calories per hour (for a 130-pound person) and Diaz loves to per...