Not only that those who abstain do so for health reasons, but many teetotalers were in the past alcoholics. Those who have never had a drinking problem tend to

Not only that those who abstain do so for health reasons, but many teetotalers were in the past alcoholics. Those who have never had a drinking problem tend to have few qualms with a glass of wine here or there, and so could be classified as light/occasional drinkers.