Caffeine abuse becoming health problem

Use of caffeine as a stimulant is becoming a problem among U.S. young people who can't get enough of it, Northwestern University researchers say.

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<p><a href="http://www.physorg.com/news83872362.html">Caffeine abuse becoming health problem</a></p> <p>Use of caffeine as a stimulant is becoming a problem among U.S. young people who can't get enough of it, Northwestern University researchers say. </p>