Assertion: methamphetamine's use | /r/Causes | vision problems
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Source sentences:
text: According to NIDA and to observational research studies, if you notice your teen becoming more hyperactive than usual and sleeping less, then they may be using meth.2,5 Meth can also cause hot flashes, vision problems, dry mouth, headaches, and dizziness, so be wary if a teen complains of any of these problems.