This thesis analyses unhealthy mentality and mental harm after sportsmen taking stimulant. And based on this, it appeals to the supervision and management of it.

本文从心理学角度对目前运动员使用兴奋剂的不良心态和心理危害进行了分析，并呼吁应加强这方面的监督和管理。

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Furthermore, the fact that coffee is a mental stimulant is well-documented.

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Well, it's about the same price of one year's worth of methylphenidate (brand name: Ritalin), a stimulant often used to treat Attention Deficit Disorder (ADD), a mental processing problem that may affect as many as seven million people in North America alone.

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