Staying in shape is harder than ever throughout much of the United States. It can be difficult to find the time and energy to stay healthy. In fact, around 30 percent of Americans are inactive. However, it doesn't have to be that way. If you are looking to increase your activity level and want to get into better shape, there are plenty of options available. Fitness classes are a great way to get into shape and to interact with others on their own fitness journeys.