In the words of Kelly Clarkson, "Just walk away."
Flat ground limits us to a single range of motion, compared to the natural variety of movements we should be accustomed to. This weakens our body and ignores how it has evolved to function optimally.
Not only do standing desks in classrooms improve health outcomes, they also improve academic performance. This is like a public health professional's dream! Why aren't these everywhere?
Active breaks can help us all avoid the harmful effects of sitting all day. Take an active break at least once an hour, and remember that an active break can be effective even if it is as short as a minute or two.