Uranium can accumulate in the human body when it's ingested or inhaled. In sufficient quantity, that can potentially lead to kidney damage, weakened bones, respiratory diseases, and lung cancer.

Protein deficiency is rare in the United States, but some people are at risk for it. Learn the symptoms of protein deficiency ...

Discover which bone is the smallest in the human body and learn why it plays such a vital role. Explore its structure, function, and fascinating facts about how it helps us hear.