Peer pressure. That’s what many parents of teens fear when their child hits adolescence. “How can I keep my kids from drinking, getting involved in drugs, or even ending up in jail?”

There is a way to keep your kids on track — and you can help them stay away from all the bad stuff. When it comes to keeping your kids away from drinking, specifically, a new report from the University of Albany — and I — say so. Here’s what you need to know. The authors show that when parents mediate their children’s screen views, kids listen. When you as a mom or dad discuss what they see on their screens with regard to drinking, you can actually influence whether or not they drink.

In the study, “Parenting Mediation in the Digital Era,” the authors state that “parents must blunt the barrage of alcohol advertising and [the] glamorization of drinking in social media to change positive attitudes into negative ones,” according to a media release. The study will appear in the Journal of Health Communication.

As simple as this concept sounds — most parents doubt they really can persuade their kids to avoid drinking. But those doubts are 100 percent false. Down deep, many parents believe that media determine their child’s behaviors, thoughts and feelings. This is absolutely not true.

Sure, media messages influence our kids, but not nearly as powerfully as we can. So roll up your sleeves.

Here’s what you can do to keep your kids from letting media messages — such as drinking — from taking your precious son or daughter down a dark path.

First, take charge over the amount of recreational screen time your kids have. Yes, they will see things you don’t like, but at least limit it as much as you can. Set a limit of about 30 minutes per day on a very specific type of screen use.

Will your children scream and throw a temper tantrum? Probably — but they’ll stop eventually.

Related: Teens and Social Media: Time to Dial It Down

Second, teach your kids critical thinking skills. Look at their screens with them and ask what they think about what they see. Do they like seeing someone getting drunk, smoking pot, having sex? Then listen.

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Direct their answers by asking more questions like, “Why do you think that/feel that?” Don’t just tell them what to think — teach them what to think, how to evaluate behaviors they see, and then ask why they believe what they do.

You may find yourself at a dead end when a child says, “I don’t know” — but that’s OK. You are teaching them to think. If you need help, I recorded a podcast (Parenting Great Kids) with Anthony Weber, and he discussed this.

Third, tell them what marketers are up to every day. One of the easiest ways to get kids to avoid falling for manipulation by marketers is to tell them why they are being sold alcohol, sex, etc.

Advertisers don’t care one whit about your kids, so directly teach your kids why they are seeing alcohol or sex on their screens. Identify the enemy, and your kids will get it. They don’t like the idea of being manipulated, either.

Don’t be hypocritical. If you don’t want your kids to do bad stuff, then you can’t. If you laugh at drunk people on screens or routinely drink too much yourself, save your breath. Kids are smart. They don’t want to be sold a bill of goods — and if they see you acting like a teenager, they’ll act like teenagers.

The real tragedy comes when smart, good parents fail to intervene on this issue because they think they can’t win the battle.

That’s the tough part about parenting. Words matter far less than actions. So, if you want your kids to avoid peer pressure or media messages like drinking, then you have to go first. The researchers from University of Albany are right on track. They, correctly, advise parents to dive into a fight for their kids. The issue isn’t whether or not they’re right: We know they are.

Science proves it. The real issue is: Will you invest enough time and energy to do what works?

Related: Social Media Worries for Your Kids? Put Down Your Own Phone

We’re living in a culture that doesn’t like your kids or mine. Social media are sucking the life out of them, violence on screens desensitizes them, and they are sold everything from sex to alcohol to weed. Those are bad — but the real tragedy comes when smart, good parents fail to intervene because they think they really can’t win the battle.

Never believe that lie. That’s being duped by peer pressure.

Dr. Meg Meeker has practiced pediatrics and adolescent medicine for more than 30 years. She is the author of the book “Hero: Being the Strong Father Your Children Need” (Regnery Publishing), along with a number of digital parenting resources and online courses, including The 12 Principles of Raising Great Kids.