Safe for the beginner and the advanced practitioner, these one-hour total-body workout videos match your bodies daily needs. Each video is a stand-alone total body workout but the videos vary exercises from day to day in order to avoid repetitive injuries. They also vary in order to strengthen and stretch all of the muscle groups at different angles, thus addressing different fibers of the same muscle making the workout more effective and efficient. According to research, you will get better results with fewer injuries by training this way. I regularly watch and do these same videos myself at home and especially when I am traveling.