This is true. From the link: > Then when participants turned 30, they were a... | Hacker News

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teamonkey on Nov 15, 2011 | parent | context | favorite | on: High IQ linked to drug use

This is true. From the link:

> Then when participants turned 30, they were asked whether they had used drugs such as marijuana, cocaine and heroin in the past year.

They only need to use drugs once in the last year to qualify.

Alex3917 on Nov 15, 2011 [–]

Exactly. 3.5 grams of weed sells for about $35, and a reasonable recreational dose is about .03 - .05 grams when vaporized, i.e. about 30 to 50 cents per use. You could even use marijuana once per month for less than $5 per year total.

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