Methamphetamine: A Growing Demonic Plague In 2018, an estimated 1 million people age 12 and older met diagnostic criteria for methamphetamine dependence or abuse. Among that figure, 24,000 were adolescents, while 188,000 were young adults ages 18 to 25. The other 751,000 were adults age 26 and older. During 2015–2018, an estimated 1.6 million…