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More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.
Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.
Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.
Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.
ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.
![It is important to ask patients what other health care providers they are seeing, such as the dentis](https://biology-forums.com/gallery/47/medium_2137_17_05_12_2_17_18.jpeg)
![Hydronephrosis. Normal kidney (left) and kidney with hydronephrosis (right) are compared. Note the d](https://biology-forums.com/gallery/47/medium_14755_26_10_12_5_19_56_96622215.jpeg)