“I have to make sure I don't engage in conversations with people who don't abide by the rules of evidence.” - Dr. Carl Hart

New Book


I wrote this book to present a more realistic image of the typical drug user: a responsible professional who happens to use drugs in his pursuit of happiness. Also, I wanted to remind the public that no benevolent government should forbid autonomous adults from altering their consciousness, as long as it does not infringe on the rights of others.

After reading this book, I hope you will be less likely to vilify individuals merely because they use drugs. That thinking has led to an incalculable number of deaths and an enormous amount of suffering. I am confident that you will come away with an appreciation for the prodigious potential good derived from drug use and a deeper understanding of why so many responsible grown-ups engage in this behavior.

If the ideas expressed in this book are embraced, we can get on with the business of treating each other better and enjoying more meaningful and fulfilling lives. And isn’t that what we all want?

Drug Use for Grown-ups, by Dr. Carl Hart
Featured Writing
International Talks

US Professor visits Switzerland’s infamous Needle Park

His name is short and powerful as two fist blows, but his appearance is gentle and relaxed. Carl Hart with unrestrained Rasta hair and earrings, Green T-Shirt and sandals is more the cliché of a reggae musician than a scientist. …

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Empty slogans, real problems

The US Drug War has led to the mass incarceration of communities of color and Brazil is poised to implement the same racist drug policies.

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Carl Hart

Dr. Carl Hart on London Real TV

Dr. Carl Hart on LondonRealTV in a unique conversation that includes drugs, the UK vs America, & what makes him tick.

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Brazil, The Favelas, & the Drug War

Brazil is my home. Though I had not visited the country before 2014, it is familiar to me because growing up in the hood in Miami is like growing up in the Favelas. Brazilians face the same challenges & structural …

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"Science should be driving our drug policies, even if it makes us uncomfortable."

-Dr. Carl Hart

Articles, Media, & Appearances
woman smoking weed

Why do American scientists ignore the benefits of drugs?

This was one of the questions at the heart of a congressional hearing this summer.

failed drug test
Drug Policy

Testing Positive for Marijuana Does Not Indicate Impairment

It is important that our laws focus on impairment rather than on simply whether a substance had been found in a person’s system.

fried eggs

This Is Your Brain on Drug Education

While the goal of decreasing drug abuse is a commendable one, these types of media campaigns have been shown to have no effect on drug use or abuse.

Drug Policy