Adults lose 2% of their muscle mass whilst gaining 7.5% fat mass per decade, so it's not too surprising that they progressively lose strength and endurance leading to falls, frailty and the inability to enjoy an active lifestyle. This study examined all of the articles published over a ten year span looking at the effects of dance on all of these aspects of body maintenance. They found a systematic improvement in strength, endurance and balance with all of the types of dance used in the studies, such as ballroom, contemporary, jazz and folk dancing. They found that the minimum "dose" necessary to produce an effect in these trials was one session per week of 45 minutes (actually no study looked at shorter time periods). Watch a video on clickanddance twice a day and see a difference in 6 weeks.