What is osteoporosis? how is it caused, and how can it be prevented?

Explanation:

Osteoporosis is a disease of bones. It occurs when bones loose density and structure of bone becomes porous. This condition leads to weaking of bones and the bones may break.

Causes : The low calcium diet in food, estrogen deficiency in women, Vitamin D deficiency and high levels of thyroid hormone secretion, too much alcohol consumption, smoking and medical condition of cystic fibrosis also result in bone weakening are responsible causes of osteoporosis.

Prevention : It can be prevented by medication, weight bearing physical exercises which can prevent loss of bones and provide strength, healthy diet with calcium and Vitamin D supplements.

the "dirty dozen" chemicals banned in an international treaty are formally known as persistent organic pollutants, or pops. the united nations environment program provided this background on what they are and what they can do to humans and wildlife.

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