Just keep yourself moving!
Taking off a few inches around the waist can help many women feel better about themselves and can help some fit into certain clothes that they may have grown out of. However, simply moving more on a regular basis can improve your health whether or not you use the waist trainer. If you're looking to slim down and lose weight, there are many other, healthier ways that you can explore that don't involve putting you at any particular risk. It's probably best to leave the waist trainer for the celebrities and just hit the gym with some comfortable activewear.