According to a massive study, the number of teenagers smoking and drinking in the US has reached historic lows. This may be, in part, because teens aren’t socializing as much as they used to, turning instead to their phones for social interactions. Another reason smoking and drinking rates are down could be due to the rise of e-cigarettes as more teens than ever are vaping. While it cannot be said with certainty that kids are vaping as a substitute for drinking and smoking, it may be a factor.