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There are approximately 3 million unintended pregnancies in the United States each year.
Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.
After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
The average older adult in the United States takes five prescription drugs per day. Half of these drugs contain a sedative. Alcohol should therefore be avoided by most senior citizens because of the dangerous interactions between alcohol and sedatives.