According to the National Osteoporosis Foundation, bone is a living, growing tissue that changes during different stages of life (National Osteoporosis Foundation 2017). At birth there are 300 soft bones, but during childhood and adolescence, bone tissue is slowly replaced by hard bone as the bone matures (Iofbonehealth.org 2017). During life stages, old bone or soft bone is removed (resorption) and new bone or hard bone is added to the skeleton (formation) (National Institute of Arthritis and Musculoskeletal and Skin Diseases 2016) . According to the National Institute of Arthritis and Musculoskeletal and Skin Diseases, resorption (the process of breaking down bones) can provide needed calcium and phosphorus when there is a deficiency in the diet. When dietary calcium and phosphorus are sufficient, the remodeling phase of formation can absorb these minerals and reconstitute the skeleton. Remodeling repairs skeletal damage that can result from repeated stress such as muscle and bone stress caused by collegiate sports. Say no to plagiarism. Get a tailor-made essay on "Why Violent Video Games Shouldn't Be Banned"? Get an original essay Remodeling replaces small cracks or deformities in areas of cell damage, prevents the buildup of too much old bone by removing or replacing old bone, and is also responsible for the skeleton as a reservoir of calcium and phosphorus. While remodeling involves the removal and replacement of bone at the same site (osteoclasts), contouring allows for the formation of new bone at one site and the removal of old bone from another site within the same bone (osteoblast) ( National Institute of Arthritis and Musculoskeletal and Skin Diseases 2016). Although remodeling predominates in early childhood and early adolescence, modeling occurs primarily in response to bone weakening that occurs primarily in later years. The structure of normal, healthy bones is made up of well-connected plates or broad bands that provide great strength. However, in individuals with osteoporosis or dysfunctional bones, the bands are disrupted and often become thin, weakened rods. As a result, the rods may not be connected to another piece of bone and therefore no longer contribute to bone strength. Childhood and adolescence represent the privileged period for bone formation. Bones grow and transform into larger, heavier, and denser bones. Bone formation outpaces bone resorption until peak bone mass (maximum bone density and strength) is reached, which usually occurs during adulthood (mid-20s). As a result, bone resorption slowly begins to outpace bone formation. Fortunately, osteoporosis only develops when bone resorption occurs too rapidly or when bone replacement occurs too slowly (National Institute of Arthritis and Musculoskeletal and Skin Diseases 2016). Osteoporosis is defined as “porous bone” meaning structural deterioration of bone tissue, leading to bone fragility and an increased risk of hip, spine, and wrist fractures (National Institute of Arthritis and Musculoskeletal Diseases and of the skin 2016). Healthy bone looks like a honeycomb when viewed under a microscope. However, when osteoporosis occurs, the holes and spaces found in a honeycomb are much larger than in healthy bone (National Osteoporosis Foundation 2017). Weak and brittle bones are the result of loss of bone mass density and contain abnormal tissue structure. Additionally, as bones lose bone mass density, they become weak and brittle and have 2017).