<s>[INST] What is osteoporosis? [/INST] Osteoporosis is a skeletal disease characterized by low bone mass, and the deterioration of bone architecture leading to bone fragility and increased risk of fracture. Bone normally rejuvenates itself through a process of bone absorption and formation called bone remodeling. Osteoporosis occurs when bone breakdown, or absorption, occurs at a rate greater than bone formation. Osteoporosis means "porous bones". It is a condition in which the bones become fragile and weakened, increasing the risk of fractures, especially in the wrist, hip and spine. Any bone can be affected, but the most serious concerns are fractures of the hip and spine. If hypertension is the silent killer, then osteoporosis is the silent thief, insidiously robbing the skeleton of its banked resources often for decades until the bone is so weak that it cannot withstand normal mechanical stress. Source: Malaysian Osteoporosis Society. Link: https://www.osteoporosis.my/aboutOsteo/faq.asp#:~:text=Poor%20calcium%20intake%20at%20any,the%20presence%20of%20adequate%20calcium.. Field: Rheumatology. Disease: Ostoeporosis  </s>