At the surface, many people's goals are to lose weight, tone up, feel better, etc. But superficial goals get superficial results that usually fade. Dig a little deeper, and the 'why' is usually unveiled: to be more confident, to be more happy, to feel sexy again.

My approach to training changed dramatically throughout my experience as one of the trainers on 'The Biggest Loser.' Getting to know each person was an important reminder that to get the body physically fit, you must first get mentally and emotionally 'fit.'

You need to put what you learn into practice and do it over and over again until it's a habit. I always say, 'Seeing is not believing. Doing is believing.' There is a lot to learn about fitness, nutrition and emotions, but once you do, you can master them instead of them mastering you.

If you think of exercise as a 60-minute commitment 3 times a week at the gym, you're missing the point completely. If you think that going on a diet has something to do with nutrition, you don't see the forest through the trees. It is a lifestyle. I know it sounds cliche, but you have to find things you love to do.