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
Gear of the Year
102 of the Best Tools, Toys & Tech
Plus: The Woman Who Bails Out the NFL's Bad Boys
ON NEWSSTANDS NOW
Joby Ogwyn: The Man Who Fell to Earth
Life Advice from John Cleese
Sign up to receive the Men’s Journal newsletter and special offers from MJ and its marketing partners.