A family history of addiction can dramatically increase someone's predisposition to substance abuse. It's not quite clear, however, whether people pass on a general propensity for addiction or a specific one for addiction to certain substances. At present, says Compton, it looks like a general tendency to addiction is more common but that addiction to specific substances may also be hereditary.
Credit: Felicity Mccabe / Getty Images
Powered By ZergNet
Sign up to receive the Men’s Journal newsletter and special offers from MJ and its marketing partners.
Off the Grid With the Ultimate Globe Trotter
Plus: Inside Football's Big Data Revolution
ON NEWSSTANDS NOW