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Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.
The heart is located in the center of the chest, with part of it tipped slightly so that it taps against the left side of the chest.
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.
There are approximately 3 million unintended pregnancies in the United States each year.