How bones built?
Human bone formation started at the time was still a fetus, and in general will continue to grow and develop up to 35 years. Here is a picture of bone formation. If the initial growth process, a lot of calcium in the blood of the bone will be formed properly.
At the age of 0 – 30/35 years, this process is called modeling because the formation of a bone model will begin in this age. This means that our bones are not equal to each other. That is why we have different looks.
At the age of 30 – 35 years, bone growth is complete, this time called remodeling in which the modeling was done to stay the process of replacing old bone with new bone is still young. After completion of bone formation, it will decrease bone mass. This can be prevented by keeping the calcium content after reaching peak bone mass.
By taking calcium 800 – 1200 mg per day (try Anlene), the mass can be maintained.
To prevent the decrease in bone mass, where this decline will lead to reduced bone density and bone will have osteoporosis.
Osteoporosis is both preventable by adequate calcium intake after age 30 or 35 years.
In the process of bone formation, bone has regenerated and replace the old with new bone , this process is balanced so that the peak bone mass is formed. After peak bone mass is formed, the bones are still experiencing the replacement of old bone with bone that is still young. But this process was not balanced in which the bones to absorb more of the bone was replaced to be replaced, hence the decrease of bone mass. If the current situation continues, there will be osteoporosis.
Hormones that affect bone directly is parathyroid hormone.
Parathyroid glands located near the thyroid gland in our necks. Due to aging, the hormonal activity is declining. This makes the calcium can not be deposited with the good. Even the consumption of calcium can not re-absorbed and out of our bodies.
With the modern approach of increasing parathyroid hormone levels back bone density will be added in nature and this is good news for us.