"Because Friday was the day of the crucifixion, Fridays were always regarded as a day of penance and abstinence," he said.

Along with her fiancé, they have committed to abstinence until after their wedding.

Now the researchers hope their conclusions will bring a better understanding of the factors underlying the pattern of alcohol consumption, from abstinence to occasional use to harmful dependence.

Even as a child or teenager, you should resist billions of dollars in alcohol and drug advertising and embrace abstinence.

To May, abstinence is not the answer to teens’ problems with social media.