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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.
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Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).
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In 1864, the first barbiturate (barbituric acid) was synthesized.
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Cyanide works by making the human body unable to use oxygen.
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Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.