Bone health and its relationships with several health outcomes of adults and elderly have been in the spotlight of recent research, as its consequences affect morbimortality. In literature, there is evidence that decreases in Bone Mineral Density (BMD) are due to the natural ageing process for both sexes, however more prevalent for women, with consequences such as increased risk of fractures, falls and incapacities in the female group....

Rapid demographical change in developing countries is much more than a transition. It is about increased health care utilization, dramatic vulnerability related to health changes, higher risk of institutionalization, and mortality. Chronological age is a very important factor in the aging process; however, people of the same chronological age are often dramatically different in their health, level of activity, quality of life, and survival....

Limited research has been conducted in the United States in which exposure to solar UVB light is studied in a natural setting as a strategy to improve vitamin D status in institutionalized older adults....