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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.
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.
Approximately 500,000 babies are born each year in the United States to teenage mothers.
In 1864, the first barbiturate (barbituric acid) was synthesized.