Lee is worried that one day soon her 25-year-old adopted daughter, who is pregnant and struggling with a drug addiction, will show up on her doorstep with a baby in tow. How will she be able to explain the situation to her other daughter, who's only 6 years old? And how can she prepare her for the day she'll confront drugs and alcohol herself? On this episode of How To!, we bring on Jessica Lahey, a teacher and the author of The Addiction Inoculation: Raising Healthy Kids in a Culture of Dependence. As a recovering alcoholic herself—and the mother of two kids—Jess knows firsthand how hard it is to talk to your kids about substance use in an effective way, especially when addiction runs in the family. "If you tell kids drugs and alcohol are just bad, they know we're hedging or lying because people wouldn't do drugs and alcohol if they were all bad," Jess says. "So a very important part of substance use prevention is being really honest and giving kids real information about consequences."

If you liked this episode, check out: "How To Kick a Meth Habit."

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