When the person gets old, you are easy to come to break it.
The senior citizen in particular trips, and there can be the thing breaking it by and you lose the balance and hit a handle on the wall really small shock.
This says "osteoporosis", and, in the one of the human agings, bone density lowers and says that a bone becomes weak.
The bone which weakened may cause lumbago and the symptom of the sciatic neuralgia afterwards.
Then how will the human bone weaken with aging?
For a period of growth, the health disturbs the bone which became old and takes in calcium and creates strong bones newly.
However, power to make this cycle lubrication when you get old declines.
In other words the power to absorb calcium becomes vulnerable to the power to do new life of a bone.
And, as a result, the minute, strong bone of the bone becomes gradually porous and weakens the strength.
The bone which became fragile is easy to become break.
And you are troubled for intense lumbago when you break the bones of the waist.
When you go to the hospital and take the X-rays, there seems to be able to be the thing that the intervertebral disk which you tied a bone and a bone to was destroyed.
Because you may become the sciatic neuralgia in particular, the bone fractures of the backbone must be careful enough.
