Just a few months before Donald Trump nominated Robert F. Kennedy Jr. to oversee U.S. health policy, the former presidential candidate was painting a shocking picture of heroin’s effectiveness as a study aid. “I was at the bottom of my class,” he said during a podcast appearance on the Shawn Ryan Show. “I started doing heroin, and I went to the top of my class. Suddenly I could sit still, and I could read and I could concentrate. I could listen to what people were saying.” The interview aired in