Can too much stress impair your body's ability to burn body fat? Absolutely. That's why I'm all about balance. We need some stress hormones (during a workout, for example) to help our bodies lean out, but if those hormones are left unchecked and never come down, you're likely going to pack on the pounds and struggle to lose weight. Find out how you can be the mistress (or master) of your own metabolic domain in my video below.