这个词是什么意思？
Agents that improve the ability to carry out activities such as athletics, mental endurance, work, and resistance to stress. The substances can include PRESCRIPTION DRUGS; DIETARY SUPPLEMENTS; phytochemicals; and ILLICIT DRUGS.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D058573 · MeSH 2026。
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