And yes. Yes, she's wearing jeans.

If you’re like us, you won’t even attempt to exercise without a television set, a magazine, a back-up magazine, your iPod, a water bottle, and of course, a mid-workout snack you can easily eat on the treadmill. Our first choice is lentil soup, but ice cream works, too. What’s important is keeping your blood sugar up so high that every calorie you burn is instantly replaced. And you don’t want to run the risk of outpacing your calorie intake by actually moving your legs. So just relax. You’ll find you leave the gym feeling even more energized than when you came in. 

Sources: Redditor dynalil