"Porn isn't addictive. It isn't even harmful for the overwhelming majority of users. Fewer than one percent of porn users experience negative effects from their porn use. But ten percent of people are afraid of their porn use. The message here is that porn isn't addictive -- but fear might be." -- David Ley, clinical psychologist (quoted in "Pornography Is Not a 'Public Health Crisis,' No Matter What Utah Lawmakers Think" by Martha Kempner, 2016-02-12