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In this case, you end up paying for the tolerance that builds up extremely quickly when you take Modafinil multiple times.

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It's interesting that tolerance is always mentioned when modafinil is brought up, because no research studies have found any evidence of the reported tolerance, and users of said drug have no incentive to hurt the modafinils image.

I wonder if repeated use simply makes the user feel that the changes are normal, when in effect, they are in a high functioning state.

>no research studies have found any evidence of the reported tolerance

http://www.gwern.net/Modafinil list off 10 different citations for the line "But what does medicine say? It seems to report no euphoria, tolerance, or withdrawal/dependency."

I was speaking anecdotally, both from my experiences and the many experiences I've read about online. Modafinil is a great replacement for sleep once in a while, but repeated usage ends up making it useless. It's not that you don't notice the effects, more like you notice the lack of them. Still tired, unable to focus, etc.

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