|
Author Question: Premenstrual syndrome may be triggered by: a. High testosterone and estrogen levels b. Low ... (Read 41 times) |
The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.
Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.
The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.
Vaccines prevent between 2.5 and 4 million deaths every year.
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.