To understand, it’s

To understand, it’s good to know a little bit about how we grow at all. When we are first born, much of our bones consist of flexible cartilage. As we grow, much of the cartilage fuses together to form solid bone. In our teenage years, growth plates located on the ends of long bones gradually lengthen. Eventually these growth plates stop growing once we reach the end of puberty. http://bit.ly/1BpEmKA

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