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After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
Carbamazepine can interfere with the results of home pregnancy tests. If you are taking carbamazepine, do not try to test for pregnancy at home.
There are more nerve cells in one human brain than there are stars in the Milky Way.
For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.
A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.