|
|
About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.
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.
Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.
Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.
![Vision with macular degeneration is experienced with an inability to focus in the center of the visu](https://biology-forums.com/gallery/47/medium_14755_14_10_12_6_36_56_939795.jpeg)
![The Canadian ballot is considerably simpler than the American ballot. Note there is nothing like a c](https://biology-forums.com/gallery/47/medium_262797_12_08_15_1_37_19_221871018.png)