With all our technology and sophistication of culture it’s easy to forget that we’re part of the animal kingdom. The development and health of our minds and bodies is just as dependent upon variety and quality of movement as it is for other animals. As children we know this instinctively. We roll around on the floor, see how many times we can spin before falling, challenge ourselves to daring feats of balance, rough-house with siblings and friends, swing our arms around as fast as we possibly can, and hang upside-down on the couch. We explore our capacity for movement the same way other animals do and for the same reason, to prepare our bodies and minds (via the nervous system) to be able to do all the things we need to do to survive.