|
|
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.
Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.
Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.
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.
It is important to read food labels and choose foods with low cholesterol and saturated trans fat. You should limit saturated fat to no higher than 6% of daily calories.
![Listening to loud music with headphones or at rock concerts is a frequent cause of hearing loss amon](https://biology-forums.com/gallery/47/medium_14755_07_10_12_3_29_40_93491848.jpeg)
![J. P. Morgan, the financial genius, staved off ruinous competition among steel firms by combining mo](https://biology-forums.com/gallery/47/medium_27_24_08_15_1_27_03_223911186.jpeg)
![A parade for Grover Cleveland in Chicago in 1892, by John Klir. Music, mirth, real drama—a president](https://biology-forums.com/gallery/47/medium_376716_26_08_15_11_16_35_22443872.jpeg)