Maia Szalavitz is in recovery from addiction to heroin and cocaine that nearly wrecked her life 40 years ago. But in a New York Times essay, she writes that she still enjoys the occasional glass of wine with dinner and sometimes takes a marijuana gummy to hel…

Szalavitz emphasizes that not everyone can shift to moderation safely, but she cites federal research suggesting that more former addicts than you might think do so. The problem is that the idea of t…