TELL US: What keeps you sitting throughout the day?

Tuesday, November 27, 2012 | 6:00 a.m. CST

Adults should have about 30 minutes of exercise a day, but people have become more sedentary over time, said John Thyfault, director of the MU Health Activity Center. Since the stone age, our steps have decreased from an estimated 18,000 to 5,000 steps a day.