Marijuana and the Teenage Brain

Marijuana and the Teenage Brain

There are two things that are certain about marijuana. The first is that it doesn’t discriminate, attaching itself to all different lives – fortunate, unfortunate, happy, sad, educated, wealthy, poor. The second is that whatever the life it attaches to, marijuana will do damage if it stays.

It has been proven beyond doubt that frequent marijuana use damages the brains of teenagers and young adults.

Throughout adolescence and into the mid-20s, the brain continues to develop in ways that are critical for higher-order thinking and executive functioning (memory, reasoning, problem solving). White matter, which is important for neural efficiency, increases in quality and volume into the early 30s.

Given that adolescence is such an important developmental period for the brain, exposure to drugs during this time has a greater impact on the brain than it does during adulthood.

Psychologists have noted the effects to include cognitive decline, poor attention and memory and diminished IQ.

‘It needs to be emphasised that regular cannabis use, which we consider once a week, is not safe and may result in addiction and neurocognitive damage, especially in youth.’ Dr Krista Lisdahl, a director of the brain imaging and neuropsychology lab at University of Wisconsin-Milwaukee.

In a 2012 longitudinal study of 1037 participants who were followed from birth to age 38, it was found that those who regularly used marijuana lost on average of 5.8 IQ points by the time they reach adulthood. This was compared to those who never regularly used marijuana whose IQ slightly increased by 0.8 IQ points from childhood to adulthood.

The physiological evidence is clear.

Brain scans of regular marijuana users show significant structural changes including abnormalities in the brain’s gray matter. These abnormalities are associated with reduced cognitive function, increased mood symptoms and poor memory. These changes have been found in users as young as 16 and were not related to major medical conditions, prenatal drug exposure, developmental delays and learning disabilities.

These findings are not intended to push against the legalisation of marijuana for medicinal purposes. Rather, it should highlight the need to implement stringent conditions on access.

‘When considering legalization, policymakers need to address ways to prevent easy access to marijuana and provide additional treatment funding for adolescent and young adult users,’ Lisdahl explained.

In considering legalisation of the marijuana, weight also needs to be given to regulating the levels of psychoactivetetrahydrocannabinol (THC – the chemical responsible for the majority of marijuana’s psychological effects) to reduce the potential neurocognitive effects.

There is research evidence that has linked frequent use of high levels of THC to depression, anxiety and psychosis.

According to Dr Alan Budney of the Department of Psychiatry at Geisel School of Medicine at Dartmouth, ‘Recent studies suggest that this relationship between marijuana and mental illness may be moderated by how often marijuana is used and potency of the substance. Unfortunately, much of what we know from earlier research is based on smoking marijuana with much lower doses of THC than are commonly used today.’

In a 2013 study of over 17,482 teenagers, marijuana use was found to be higher among teenagers from countries that had a more accepting attitude towards medical marijuana. Greater tolerance of marijuana for medicinal purposes seems to promote a greater tolerance for the drug generally, at least by adolescents, possibly because of a diminished perception of the risks associated with the drug.

The risks of marijuana on the developing brain have been extensively documented. The debate around the legalisation of marijuana for medicinal purposes is in full swing. Should this end on medicinal marijuana being approved, research points to the importance of consideration being given to restricting access, reducing the potency of THC and raising awareness, particularly in adolescents, on the risks of recreational use.

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George W

Could the link between marijuana and depression, anxiety and psychosis be as a result of higher use among these type of people rather than causing these mental issues directly?

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Behaviour is never from ‘bad’. It’s from ‘big’. Big hungry, big tired, big disconnection, big missing, big ‘too much right now’. The reason our responses might not work can often be because we’ve misread the story, or we’ve missed an important piece of it. Their story might be about now, today, yesterday, or any of the yesterdays before now. 

Our job isn’t to fix them. They aren’t broken. Our job is to understand them. Only then can we steer our response in the right direction. Otherwise we’re throwing darts at the wrong target - behaviour, instead of the need behind the behaviour. 

Watch, listen, breathe and be with. Feel what they feel. This will help them feel you with them. We all feel safer and calmer when we feel our people beside us - not judging or hurrying or questioning. What don’t you know, that they need you to know?♥️
We all have first up needs. The difference between adults and children is that we can delay the meeting of these needs for a bit longer than children - but we still need them met. 

The first most important question the brain needs answered is, ‘Is my body safe?’ - Am I free from threat, hunger, exhaustion, pain? This is usually an easier one to take care of or to recognise when it might need some attention. 

The next most important question is, ‘Is my heart safe?’ - Am I loved, noticed, valued, claimed, wanted, welcome? This can be an easy one to overlook, especially in the chaos of the morning. Of course we love them and want them - and sometimes we’ll get distracted, annoyed, frustrated, irritated. None of this changes how much we love and want them - not even for a second. We can feel two things at once - madly in love with them and annoyed/ distracted/ frustrated. Sometimes though, this can leave their ‘Is my heart safe?’ needs a little hungry. They have less capacity than us to delay the meeting of these needs. When these needs are hungry, we’ll be more likely to see big feelings or big behaviour. 

The more you can fill their love tanks at the start of the day, the more they’ll be able to handle the bumps. This doesn’t have to be big. It just has to be enough. It might look like having a cuddle, reading a story, having a chat, sitting with them while they have breakfast or while they pat the dog, touching their back when they walk past, telling them you love them.

All brains need to feel loved and wanted, and as though they aren’t a nuisance, but sometimes they’ll need to feel it more. The more their felt sense of relational safety is met, the more they’ll be able to then focus on ‘thinking brain’ things, such as planning, making good decisions, co-operating, behaving. 

(And if this today was a bumpy one, that’s okay. Those days are going to happen. If most of the time their love tanks are full, they’ll handle when it drops a little. Just top it up when you can. And don’t forget to top yours up too. Be kind to yourself. You deserve it as much as they do.)♥️
Things will always go wrong - a bad decision, a good decision with a bad outcome, a dilemma, wanting something that comes with risk. 

Often, the ‘right thing’ lives somewhere in the very blurry bounds of the grey. Sometimes it will be about what’s right for them. Sometimes what’s right for others. Sometimes it will be about taking a risk, and sometimes the ‘right’ thing just feels wrong right now, or wrong for them. Even as adults, we will often get things wrong. This isn’t because we’re bad, or because we don’t know the right thing from the wrong thing, but because few things are black and white. 

The problem with punishment and harsh consequences is that we remove ourselves as an option for them to turn to next time things end messy, or as a guide before the mess happens. 

Feeling safe in our important relationships is a primary need for all of us humans. That means making sure our relationships are free from judgement, humiliation, shame, separation. If our response to their ‘wrong things’ is to bring all of these things to the table we share with them with them, of course they’ll do anything to avoid it. This isn’t about lying or secrecy. It’s about maintaining relational ‘safety’, or closeness.

Kids want to do the right thing. They want us to love and accept them. But they’re going to get things wrong sometimes. When they do, our response will teach them either that we are safe for them to come to no matter what, or that we aren’t. 

So what do we do when things go wrong? Embrace them, reject the behaviour:

‘I love that you’ve been honest with me. That means everything to me. I know you didn’t expect things to end up like this, but here we are. Let’s talk about what’s happened and what can be different next time.’

Or, ‘Something must have made this (wrong thing) feel like the right thing to do, otherwise you wouldn’t have done it. We all do that sometimes. What do you think it was that was for you?’

Or, ‘I know you know lying isn’t okay. What made you feel like you couldn’t tell me the truth? How can we build the trust again. Let’s talk about how to do that.’

You will always be their greatest guide, but you can only be that if they let you.♥️
Whenever there is a call to courage, there will be anxiety - every time. That’s what makes it brave. This is why challenging things, brave things, important things will often drive anxiety. 

At these times - when they are safe, but doing something hard - the feelings that come with anxiety will be enough to drive avoidance. When it is avoidance of a threat, that’s important. That’s anxiety doing it’s job. But when the avoidance is in response to things that are important, brave, meaningful, that avoidance only serves to confirm the deficiency story. This is when we want to support them to take tiny steps towards that brave thing. It doesn’t have to happen all at once.l and it doesn’t matter how long it takes. Brave is about being able to handle the discomfort of anxiety enough to do the important, challenging thing. It’s built in tiny steps, one after the other. 

We don’t have to get rid of their anxiety and neither do they. They can feel anxious, and do brave. At these times (safe, but scary) they need us to take a posture of validation and confidence. ‘I believe you, and I believe in you.’ ‘I know this feels big, and I know you can handle it.’ 

What we’re saying is we know they can handle the discomfort of anxiety. They don’t have to handle it well, and they don’t have to handle it for too long. Handling it is handling it, and that’s the substance of ‘brave’. 

Being brave isn’t about doing the brave thing, but about being able to handle the discomfort of the anxiety that comes with that. And if they’ve done that today, at all, or for a moment longer than yesterday, then they’ve been brave today. It doesn’t matter how messy it was or how small it was. Let them see their brave through your eyes.‘That was big for you wasn’t it. And you did it. You felt anxious, and you stayed with it. That’s what being brave is all about.’♥️
A relationally unsafe (emotionally unsafe) environment can cause as much breakage as as a physically unsafe one. 

The brain’s priority will always be safety, so if a person or environment doesn’t feel emotionally safe, we might see big behaviour, avoidance, or reduced learning. In this case, it isn’t the child that’s broken. It’s the environment.

But here’s the thing, just because a child doesn’t feel safe, doesn’t mean the person or environment isn’t safe. What it means is that there aren’t enough signals of safety - yet, and there’s a little more work to do to build this. ‘Safety’ isn’t about what is actually safe or not, it’s about what the brain perceives. Children might have the safest, warmest, most loving adult in front of them, but that doesn’t mean they’ll feel safe. This is when we have to look at how we might extend bigger cues of warmth, welcome, inclusiveness, and what we can do (or what roles or responsibilities can we give them) to help them feel valued and needed. This might take time, and that’s okay. Children aren’t meant to feel safe with every adult in front of them, so sometimes what they need most is our patience and understanding as we continue to build this. 

This is the way it works for all of us, everywhere. None of us will be able to give our best or do our best if we don’t feel welcome, liked, valued, and free from hostility, humiliation or judgement. 

This is especially important for our schools. A brain that doesn’t feel safe can’t learn. For schools to be places of learning, they first have to be places of relationship. Before we focus too sharply on learning support and behaviour management, we first have to focus on felt sense of safety support. The most powerful way to do this is through relationship. Teachers who do this are magic-makers. They show a phenomenal capacity to expand a child’s capacity to learn, calm big behaviour, and open up a child’s world. But relationships take time, and felt safety takes time. The time it takes for this to happen is all part of the process. It’s not a waste of time, it’s the most important use of it.♥️

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