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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.

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When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.

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The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.

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Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

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Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

Competition in a forest can be as intense as competition on a coral reef. However, much of the compe Competition in a forest can be as intense as competition on a coral reef. However, much of the compe
A stallion with a proven competition record is one criterion for being a suitable sire. A stallion with a proven competition record is one criterion for being a suitable sire.
Primary School Attendance in World Regions Attending primary school is common but not universal, wo Primary School Attendance in World Regions Attending primary school is common but not universal, wo
A compression gauge designed for the higher compression rate of a diesel engine should be used when ... A compression gauge designed for the higher compression rate of a diesel engine should be used when ...
Foundations of evidence-based practice. Foundations of evidence-based practice.
Outgroup role in relative rate test Outgroup role in relative rate test
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