Her Brain Was Broken. It Was Fixed With Sound--Not a Scalpel

One woman's meth addiction was so bad, the only option left might have been brain surgery. Then a single session of noninvasive, focused ultrasound seemed to do what years of treatment could not. Erin McNulty had been missing for weeks when her mother, Linda, sat down on a chair in her living room, exhausted. Linda had put in her usual seven-day workweek at the antiques shop she runs near Burlington, Vermont. She'd spent her free evenings driving around, trying to track down her daughter. Erin, 45 at the time, had been using methamphetamine for years. Her substance use started in high school--first alcohol, then marijuana, and eventually heroin. Erin's brother used heroin, too. When Linda found out, she started driving her kids to a methadone clinic three hours away in Massachusetts. The methadone helped, but it made Erin feel tired all the time, so she started using cocaine to stay awake. There were stretches of sobriety--she had her daughter during one of them, in 2008.