Our feet support us all day long, during work and play. So what makes up a foot? In the human body your foot is made up of 26 bones, 33 joints, 107 ligaments, and 19 muscles and tendons. Combined the 52 bones in your feet make up 25 percent of the bones in your body.
So if our feet support us and provide the foundation for the rest of our bodies, what supports the feet. In our society that would be shoes. There are a lot of benefits though of going barefoot, if you search the internet you will find many sites that praise the health benefits of bare footing it through life.. In fact there is a Society for Barefoot Living....http://www.barefooters.org/.  or check out this site http://physicalliving.com/the-definitive-guide-for-going-barefoot/
But for most of us, we have to go to work and into public places where it is required to keep our feet covered.
It is so important to find shoes that fit well and to change our shoes frequently. I am the kind of person who tends to find a pair of shoes that really make my feet feel good, and then wear them daily until they are worn out and I am noticing my knees, back, and hips are starting to ache... then it is time for me to go out and find a new pair of shoes that feel good, hopefully I can get lucky and find the exact same kind I had before.
As I am growing older and wiser, I am finally learning the benefits of changing my shoes more frequently. It's sort of the same concept of rotating your tires on your car. If you rotate your car tires they will last longer and be more beneficial for your driving safety, and if you rotate your shoes, they also will last longer, and promote better health benefits for your body and feet.