Our bones form our skeleton- literally the foundations upon which everything else in our body is hung and are critical to our health. Bones are a living part of our body and are filled with cells and blood vessels. They are dynamic- ever changing- constantly being broken down and reformed over time. Each small bit of bone is completely reformed around every 3-9 months.
Our peak bone forming years are up until our early to mid-twenties after which our bone resorption equals bone loss, keeping a roughly steady state of bone density until a few years before the menopause.
Around the time of the menopause, break down of bone overtakes bone formation and bones start to get thinner rapidly.