Shoshana and Kristen - Why you should work out with a friend.Shoshana and Kristen are showing off the benefits to a workout with a friend, and toning their cores and upper bodies at the same time.You don't have exercise alone - in fact, when you do it with a friend, you'll have better results!---------- Send a breaking news alertReport a correction or typoLearn more about the 6abc apps Report a correction or typo