Columbia psych professor, 54, claims he does heroin to 'maintain his work-life balance' 

Carl Hart, left, studies the effects of psychoactive drugs on humans. He has detailed his drug use in a new book titled 'Drug Use for Grown-ups: Chasing Liberty in the Land of Fear.' https://www.dailymail.co.uk/news/article-9280335/Head-Columbia-psych-department-claims-does-heroin-MDMA-feel-refreshed.html?ns_mchannel=rss&ns_campaign=1490&ito=1490