It might sound crazy, but changing your vocabulary can actually make you burn more fat. It can also make you stronger and build up your body. This is due to specific effects that words have on your physiology.
Most men can think of 3-5 positive or negative emotions in 10 seconds. Most women can think of 4-7 positive or negative emotions in the same amount of time. Try it yourself. In 10 seconds, think of as many positive emotions as you can, and then in another 10 seconds think of as many negative emotions as you can. Write them down, and you will be looking at your most common experiences in a typical day.
Expanding your emotional vocabulary will expand your experiences, and it can even help you get leaner. Every time you ponder positive words (i.e. joy, love, bliss, elation, etc.) your brain and body releases chemicals and hormones that boost your mood, repair damaged tissue, strengthen your immune system, and give you more energy (to name just a few). When you focus on negative emotions (i.e. anger, resentment, malice, jealousy, etc.) your body and brain pumps out chemicals and hormones that break you down, age you prematurely, and can even foster diseases like cancer!