Meth In The Morning, Heroin At Night: Inside The Seesaw Struggle of Dual Addiction

(NPR, June 17) The recent resurgence of methamphetamine is connected to the opioid epidemic, according to researchers.

In 2011, 19% of opioid users admitted to also using meth; in 2017, that percentage jumped to 34%, according to a study published in Drug and Alcohol Dependence.

"Methamphetamine served as an opioid substitute, provided a synergistic high, and balanced out the effects of opioids so one could function 'normally,' " researchers wrote in the study. Read more.