|
|
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.
When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.
Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.
Women are 50% to 75% more likely than men to experience an adverse drug reaction.
Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.
![The family of a soldier in the 31st Philadelphia Infantry camps near Washington, DC. Although both a](https://biology-forums.com/gallery/47/medium_376021_22_08_15_1_40_23_223592010.jpeg)
![Chinese workers on a railway in the far West. “Without them,” Leland Stanford, president of the Cent](https://biology-forums.com/gallery/47/medium_376063_22_08_15_11_31_02_223711629.jpeg)