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/sci/ - Science & Math

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>> No.4732222 [View]
File: 378 KB, 1024x768, Black-Tea.jpg [View same] [iqdb] [saucenao] [google]
4732222

What's something besides coffee or tea that'll help keep me focused and awake without having any detrimental effects to my health or costing heaps?
Hard mode=no drugs or other addictive substances.

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