Answer: 5). where and when a disease occurs, and how it is transmitted.
Explanation: Epidemiology is a branch of medicine and the cornerstone of public health that studies the distribution and control of a disease. Epidemiology involves the study of who is affected by a disease, where is affected (the geographical location), when it is affected (time) and the used of these studies in the control of diseases and other health problems.
Osteoclasts then become more active without estrogen, and your body breaks down more bone. Certain medical conditions and some medications can speed up the process of osteoporosis. This is called secondary osteoporosis.
