There have been numerous studies that show couples who exercise together find they stick to a workout program longer and maintain a healthier relationship. One study, from the
Department of Kinesiology at Indiana University, surveyed married couples who joined health clubs together and found that couples who worked out separately had a 43 percent dropout rate over the course of a year. Those who go to the gym together, regardless of whether they focused on the same type of exercise, had only a 6.3 percent dropout rate.”