|
|
An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.
Bisphosphonates were first developed in the nineteenth century. They were first investigated for use in disorders of bone metabolism in the 1960s. They are now used clinically for the treatment of osteoporosis, Paget's disease, bone metastasis, multiple myeloma, and other conditions that feature bone fragility.
Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.
It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.
There are approximately 3 million unintended pregnancies in the United States each year.
![Photograph taken during a laparoscopic procedure. The fundus of the uterus is visible below the prob](https://biology-forums.com/gallery/47/medium_14755_28_08_12_1_52_26_82611757.jpeg)
![To maintain balance the bipedal pelvis has a foreshortened ilium and is broader and bowl-shaped. The](https://biology-forums.com/gallery/47/medium_295860_21_02_15_1_23_42_20667469.jpeg)