Stress and the Teenage Brain (Part 1): The Good, the Bad and the Ugly

Stress and the teenage brain

Here’s a fact that may surprise you:

The average high school student today experiences the same level of anxiety as the average psychiatric patient of the 1950s.

Take a moment to let that sink in: teenagers who are now considered normal would have been referred for specialist treatment in the 1950s.

What’s causing teenagers to feel so anxious?

Professor of Psychology at San Diego State University Dr Jean Twenge believes the increase in mental health issues is due to how teenagers spend their time – on smartphones and social media. She states:

“Right when smartphones became common, and teens started spending less time face-to-face, their psychological well-being plummeted.”

screen time and mental health

It turns out the more time you spend in front of a screen and on social media, the more depressed and anxious you’re likely to feel. This article helps to explain why this is the case.

The problem with stress

Stress stops you from enjoying minutes, hours and days of your life. It also makes learning information incredibly difficult.

A stressed brain is like a computer that has been infected with a Trojan virus. It can’t process information efficiently. It runs really slowly and often freezes. Its systems have gone haywire.

stressed teenage brain

Studies show the build up of toxic stress in the brain can shorten our telomeres making us age faster and lead to the development of Alzheimer’s.

But let’s be clear, not all stress is the same …

There’s good stress and then there’s bad stress.

Good stress can help motivate you and propel you into action. It can make you mentally sharper and help you lift your game.

Bad stress is toxic stress that lingers in your brain and body. If not managed well, it can cause serious damage.

If you’re now thinking, That’s it! I’m dropping out of school and university. It’s just too stressful!, think again. Why? Because stress that lingers isn’t always harmful.

Neuroscientists Doctors Dean and Ayesha Sherzai (authors of The Alzheimer’s Solution) argue that we should welcome some forms of chronic stress. They state:

“Pursuing long-term goals towards an important milestone (getting an academic degree, for example, or changing a lifelong habit) can seem overwhelming, but this kind of purposeful action actually creates significant cognitive reserve (a measure of the brain’s resilience). The associated stress may in fact be chronic, but it fits your vision and purpose. The stress has both a direction and a timeline: you set the goal, and you’re in control.”

Here’s the critical factor when it comes to stress: you need to be the boss of it (i.e. in control and able to manage it).

But what if you’re not in control of your stress? What can this do to the developing teenage brain?

Neuroscientist Doctor Richard Restak (author of Think Smart) states:

“It [the adolescent brain] doesn’t manage stress very well. Typically stress in an adult brain causes a rise in cortisol levels (a measure of stress) followed by a gradual decrease over an hour or two.

In adolescents, that burst of cortisol hangs around a lot longer, resulting in sustained exposure of the brain to harmful effects, such as shrinkage of cells in the hippocampus (resulting in memory loss and depression) and the amygdala (resulting in anxiety and other overwhelming emotions).”

He goes onto state:

“This has important consequences because the hippocampus, the amygdala, and the prefrontal cortex are the three brain areas that undergo major changes during adolescence. If these brain areas are damaged by stress hormones, the effect can extend into adulthood …”

In short, stress that is poorly managed can mess with the growth and resilience of the teenage brain.

What can you do to combat toxic stress?

brain power
You need tools, hacks and strategies because toxic stress is an ugly beast. The good news is there is no shortage of effective strategies out there: meditation, walks in nature, avoiding multi-tasking, having time-out from technology (e.g. The Back to the 1950s technique), exercise, etc.

The challenge is to make stress management a top priority. Set aside some time each day to engage in activities that relax your body and brain. If you want to optimise your brainpower, it’s well worth spending the time to do this.

In the next blog post, I’ll share a range of different strategies to decrease and manage toxic stress in your life.

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Technology can work for you or it can work against you.

If I’m honest with myself, there was a time when technology was doing me more harm than good.

On Facebook, I frequently fell into the comparison trap (comparing myself to people who had posted delicious dinners, amazing holiday photos, etc).

On Twitter, I’d get baited by trolls (and I’d foolishly take the bait).

Throughout the day, I’d constantly check my phone and email, which left me feeling jittery and chaotic.

Big Tech was constantly hijacking my time, energy, and attention. Every time I retreated to my devices for a quick shot of dopamine, I moved further away from my goals. I didn’t like this, and I knew something needed to change.

Over the past three years, I’ve implemented many practices to regain control of my time, energy, and attention (including deleting all social media).

These practices have made a big difference in my life. But I’m well aware that not everyone feels the same way I do about Big Tech, nor are they in a position to be able to delete all their accounts.

My Reality Check

Following a school presentation, I spoke with a small group of year 8 students. I shared with them that I didn’t use any social media, to which a year 8 girl quickly chimed in:

“My grandma has Facebook. What’s your excuse?”

Her words struck me like a bolt of lightning. I didn’t know what to say.

It highlighted how adopting these apps is the norm for a young person.

When everyone else has a smartphone and is using social media (including your parents and grandparents), why would you question using them?

I couldn’t forget the year 8 girl’s words. While I appreciated her candidness, it left me slightly disturbed.

At the same time, it increased my motivation to resist Big Tech. I started searching for role models: people actively resisting Big tech and this hyperconnected, fast-paced way of life.

One community kept popping up in my research: the Amish.

Lessons from the Amish

The Amish are often portrayed as being technologically impaired. A classic example is Weird Al Yankovic’s music video Amish Paradise (a parody of Coolio’s mega-hit Gangsta’s Paradise).

In this video, Weird Al sings:

I never wear buttons but I got a cool hat
And my homies agree I really look good in black, fool
If you come to visit, you’ll be bored to tears
We haven’t even paid the phone bill in 300 years
But we ain’t really quaint, so please don’t point and stare
We’re just technologically impaired

There’s no phone, no lights, no motorcar
Not a single luxury
Like Robinson Crusoe
It’s as primitive as can be

While the Amish still mainly travel by horse and buggy and shun many modern technologies, such as televisions, radios, and cars, they are not ‘technologically impaired’ as Weird Al makes out.

When it comes to cultivating healthy digital habits, there is a lot we can learn from the Amish.

The Amish have a set of strategies that guide the adoption and use of different technologies. These strategies have allowed them to avoid being pawns for the goals of Big Tech companies, which make massive profits by seizing people’s attention.

I recently read a fascinating book called Virtually Amish, written by Dr Lindsay Ems. For her PhD research, Dr Ems spoke to Amish people about their relationship to modern technology (e.g., smartphones).

She argues that the Amish take control of their tech tools and thrive. Through adopting similar practices, we can thrive, too.

Below, I share how you can thrive by emulating Amish practices and beliefs around technology:

1. Become a technoselective

The Amish are not technophobes. They are ‘technoloselectives’.

They carefully consider the tech tools they’ll adopt and their functionality, tweaking them to help them achieve their goals.

The Amish don’t mindlessly purchase the latest gadgets and gizmos. Instead, they think about their values and goals and how the technology could cause unintended harm to themselves and the wider Amish community.

What are your goals?
Do your tech tools help you achieve them, or do they distract you from them?

2. Be guided by your values

The Amish are guided by their values (i.e., the things that are most important to them). Their values underpin everything they do.

So, what exactly do Amish people value?

• Community
• Connections with others
• Living a simple and slow-paced life
• Living a spiritually rich life
• Being self-sufficient

The Amish use these values to guide their adoption of technology.

An example of this can be seen with the arrival of the home telephone (not smartphone). Dr Ems shares how the Amish decided to ban the telephone from being inside the family home.

This ban came about after careful consideration and reflection on their values. The Amish value connections with family, friends, and the community. They don’t want to be the kind of person who interrupts a conversation by answering a telephone call. For this reason, telephones are located outside Amish family homes or nearby.

What are the things that are most important to you?
How does technology impact on those things?
Does it enrich those things or diminish them?

3. Understand technology isn’t neutral

The Amish understand that technology can cause harm. Subsequently, they intentionally delay adopting new technology until they see its impact on others.

Does it destroy family life? Does it wreak havoc on their ability to pay attention and distract them from their spiritual life?

If so, the technology threatens their culture and religion, and for these reasons, it should be avoided.

Before adopting a piece of technology, the Amish need to be clear about two things:

1) The functionality of the technology (what it can do)
2) The potential social impacts of the technology

Once they deeply understand these things, it is then decided whether the technology is adopted or not.

It may come as no surprise that Amish people view the smartphone as an incredibly dangerous innovation. Many Amish communities have bans on this device.

How do you feel after spending time on social media?
Have you seen things posted on social media that weren’t true or were exaggerated?

4. Put the technology on trial

When an Amish person wants to use a new technology, that technology will go through a formal decision-making process.

The community (in particular, the leaders) will consider the future with this technology. They’ll try to imagine how the technology could change their way of life.

Questions the Amish reflect on include:

• What are the advantages and disadvantages of the technology?
• What might come with it that we might not anticipate?
• Could someone get addicted to it?
• Is it a need or a want?
• Can the technology be restrained?

In her book Virtually Amish, Dr Ems provides the example of an Amish business owner asking the community leaders if he could have permission to use a label maker for his business.

After careful consideration, the leaders ruled label makers could be allowed for the following reasons:

• They are not addictive
• They can’t be used for recreational purposes (e.g., playing games or entertainment)

Think of a new technology (device or app) you want to adopt. Could it become addictive?

5. What matters is how you use it

Many Amish people believe the issue is not whether you use a smartphone or social media but how you use it. It’s important that the Amish remain in control of their use of tech and place limits on it.

It’s also important that the technology is not visible (i.e., you don’t pull your smartphone out in Church or during a conversation). Being discrete in the way one uses technology shows respect for Amish values.

How do you use the tech in your life?
Are you in control of your use?

6. Reflect on who you become when you use the technology

Amish people think about not just how they use the technology but what kind of person they become when they use it.

This point resonated with me deeply. I can’t say I’ve always liked who I become when I use certain technology.

A few years ago, I babysat my friends’ children when my friends went out for a kid-free meal. I look back and cringe when I think about how the experience unfolded.

Before going to my friend’s place to start babysitting, I got into a heated text discussion with some people in a group chat. Things were said that upset me.

For most of the night, I was on my phone, texting back and forth, not present with these young children. At one point, the little boy tugged on my arm to get my attention. “Aunty Jane, come play!” he said.

What can I say? I felt terrible. This certainly was not my finest moment. I had become the kind of caregiver I am usually quick to judge: distracted and disengaged.

I vowed to avoid trying to resolve issues by text and leave my phone at home next time to be fully present with the kids.

When you use social media, what sort of person do you become?

7. Adopt sticky tech tools

The Amish take modern tech tools and modify them to help them achieve their goals.

The plain mobile phone is an example of this. Amish people have created a mobile phone that can only make calls. It doesn’t have a camera, games, access to the Internet, or the ability to send text messages.

Similarly, the plain computer allows Amish to make spreadsheets, do word processing, and construct simple drawings. This allows them to complete tasks without being distracted by other things.

In other words, the Amish create what David Kadavy (author of Mind Management, Not Time Management) would refer to as sticky tools. A sticky tool allows you to stay focused on a task without getting distracted.

What sticky tools could you consider adopting (e.g., a basic flip phone and Internet blocker app)?

8. Create, don’t consume

The Amish take pride in growing their own food, raising barns, baking their own bread, tinkering with robotics, inventing, and making their own clothes. They are not big consumers, but they embrace a simple lifestyle and encourage human creativity.

In the modern non-Amish world, many of us are doing the polar opposite of this. We have fallen into the trap of consuming content mindlessly online (e.g., watching people bake bread instead of baking our own bread).

Don’t get me wrong—the Internet is an excellent learning tool to help us build our skills. I have turned to YouTube for many instructional videos on how to make and fix things. But doing this requires discipline because it is all too easy to get derailed by other distracting videos.

The bottom line is this: the more time we spend online, the more ads we are likely exposed to and the more our consumptive desires are stirred up. Is it any wonder so many people feel so dissatisfied with their lives?

Instead of mindlessly consuming, what can you create today?

9. Embrace inconvenience

The Amish embrace tech with inbuilt friction. In fact, inconvenience is considered a virtue.

Dr Ems shares that many Amish technologies intentionally contain ‘speed bumps’ and ‘friction’. The reason for this friction is to prevent Amish people from wasting time on the device.

I’ve found this is one of the positives associated with using a ‘basic phone’.

Last year, I experimented with using a basic flip phone with limited functionality (I could only make calls and send texts). Texting on this phone was so painfully slow that it made me want to avoid getting into long text discussions with people. It was easier to pick up the phone and call people.

Using a smartphone to text your friends may be easier than making a phone call, but as the Amish strongly believe, easier is not always better.

How can you build friction into your tech use?
Can you embrace analog alternatives to decrease your screen time?

To sum up

How much control do you have over your time, energy, and attention? As Chris Bailey writes in his book How to Calm Your Mind, “On the Internet, our intentions very quickly slip from our grasp.”

If you want to thrive online and offline, consider adopting some of the tech habits of the Amish. By limiting their tech use, the Amish have been able to remain mentally free and protect their way of life.

If more of us adopted Amish tech practices (e.g., being intentional with our tech use and placing limits on it), we’d most likely feel calmer and less anxious. We’d also spend more time engaged in activities that bring us joy and are aligned with what we value.

Overcoming decision fatigue

Do you ever feel exhausted by the middle of the day?

If so, you could be suffering from decision fatigue.

Decision fatigue occurs when you have to repeatedly make decisions. Every decision you make takes effort and depletes some of your mental resources. By the end of the day – after making hundreds of decisions – you feel mentally drained.

You struggle to make simple decisions (e.g., “What will I have for dinner?”) and the quality of your decisions deteriorates too (“I’ll get Uber eats”).

In the book The Gap and The Gain, Dr Benjamin Hardy describes decision fatigue as follows:

“Decision fatigue happens when you’re not sure what you’re going to do. It’s when you’re torn between options and, due to your indecisiveness, you often cave to the tempting worse option.”

Sound familiar?

Instead of studying, you go on social media.
Instead of cooking a healthy meal for dinner, you order greasy fish and chips.
Instead of getting to bed at a reasonable hour, you watch another episode on Netflix.

Unless you have the self-discipline and mental clarity of a Zen master, decision fatigue is something we have all experienced.

Research has found even people who are expert decision makers (i.e., judges) suffer from decision fatigue.

In one study researchers examined 1,112 judicial parole decisions by eight experienced judges at different times throughout the day.

Irrational-hungry-judge-effect-study

The researchers found if prisoners appeared before the judges at the very beginning of the day or after a food break (morning tea or lunch), they were more likely to get granted parole than prisoners who appeared later in the sequence of cases in a session.

In fact, they found the probability of a favourable decision dropped from 65% to almost 0% from the first ruling to the last ruling with each sitting session.

What was going on?

When the judges started their work day, they had a lot of mental resources available. One would assume these judges had slept well and had some breakfast.

But as each sitting session progressed, each decision they made depleted their mental resources and executive function. Just before morning tea or lunch, their mental resources would have been running low.

The researchers argued that when the judges had limited mental resources they became increasingly punitive. They simplified their judicial decisions and went with the status quo which was to deny parole requests.

This phenomenon is known as the Irrational hungry judge effect.

What do you do with a hangry judge?

Give them plenty of breaks and food.

In this study, the judges’ mental resources seemed to be replenished and their decision making ability restored after morning tea and lunch breaks.

Ways to replenish your mental resources

What does this research on hangry judges have to do with your studies and work?

Here’s how it relates . . .

For optimal brainpower, you have to schedule in rest breaks. If you don’t schedule in regular rest breaks, they often don’t happen. You also need to take care of yourself with healthy food and healthy lifestyle practices and eliminate trivial decisions wherever you can.

Here are some simple and practical things you can do to overcome decision fatigue and keep your mental resources topped up:

1. Carry a digital timer with you

Carry a digital timer

I like to have a digital timer within arms reach at all times when I’m working. At the start of a work session, I’ll set the timer for 20-30 minutes. When the timer goes off that’s my cue to get up and move.

The timer reminds me that:

1) I’m not a robot; and
2) I need to take breaks to replenish my mental resources.

2. Stop mindlessly clicking and scrolling

Clicking and scrolling through your social media feed can rapidly deplete your mental resources. Jumping around the Internet from one random post or video to another can erode your attention and willpower. As the Center for Humane Technology states:

“When endless content creates an overwhelming amount of want, we can end up addicted to seeking satisfaction, clicking and scrolling, mindlessly consuming content, often with minimal oversight from cognitive control regions of the brain. Ultimately, this behavior drains our energy.”

Social media algorithms also promote content that provoke angry reactions over neutral and positive reactions. When you see posts that fill you with anger and other negative emotions (e.g., fear, envy, and anxiety), this can also leave you feeling drained.

So, be intentional about your social media use. Ask yourself, “Why am I going on here? What’s the point?” If it’s for fun and/or entertainment, that’s fine. But it’s a good idea to have your digital timer nearby and set a time limit. When the timer goes off, say out loud “That’s enough. I’m getting off!”.

3. Eat healthy snacks and food

Your brain needs energy to function at an optimal level. Where does it get that energy from?

Simple answer: food.

Author of The Willpower Instinct Dr Kelly McGonigal recommends fuelling your body with foods that give you lasting energy. She states:

“Most psychologists and nutritionists recommend a low-glycemic diet- that is, one that helps you keep your blood sugar steady. Low-glycemic foods include lean proteins, nuts and beans, high-fiber grains and cereals, and most fruits and vegetables-basically, food that looks like its natural state and doesn’t have a ton of added sugar, fat, and chemicals.”

4. Establish habits, plans, and/or check lists

Establishing habits, pre-planned responses, and checklists reduces the number of decisions you need to make, subsequently preventing decision fatigue.

I’m a big fan of tiny habits and implementation intentions to help streamline the day. I also have a folder of checklists to help me pack equipment for various trips, work jobs, and community events.

These checklists make all the difference, especially when packing for trips away. The night before I go away, I grab my packing list and start throwing items into my bag. Very little mental effort and/or decision making is required! I get to start my holiday full of energy rather than feeling mentally depleted and grumpy.

5. Spend time in nature

If you’re feeling overworked and mentally frazzled, head outside for a good dose of nature. Research by Hartig shows nature can restore deficits in attention and make people think and feel better.

6. Move your body

I understand when you’re feeling tired, the last thing you want to do is get up and move. But research shows a five minute walk can do your brain the world of good.

One study found taking six regular five minute walking breaks every hour left people feeling more energised and less fatigued than people who just took one 30 minute walking break and sat for the rest of the day.

7. Do trivial things the night before

Can you lay out your clothes the night before? Pack your lunch and bag before you go to bed? Write a short to-do list for the next day? If you can knock off a few trivial decisions the night before, this is going to lighten your mental load the next day.

8. Take a nap

I love the energising effect of taking a post-lunch/afternoon siesta. I started taking power naps when I was an exchange student in Italy. My Italian host mother insisted I take a nap after lunch (it’s what everyone in the village did). So, when in Rome . . .

I grew to love taking naps. In fact, I’ve continued the practice for the past 20 years.

I recommend limiting your naps to 15-30 minutes in duration (any longer and you risk waking up feeling groggy). To avoid messing with your sleep at night, make sure you take your nap before 5pm.

To sum up

We can all learn a thing or two from the example of the punitive behaviour of the hangry judges. To avoid the Irrational hungry judge effect you need to take care of yourself.

The good news is there’s a lot you can do to replenish your mental resources. If you take a few minutes here and there to engage in tiny self care practices, not only will you feel better but you’ll more likely make better decisions.

Why is it that the closer it gets to exams, the more time we tend to waste online?

If you find yourself watching random videos when you need to be studying, you’re not alone.

This behaviour is most likely due to the fact that you’re feeling stressed and tired.

When you’re freaking out about everything you need to do to prepare for exams, this rapidly depletes your willpower and energy. This is why you’re more likely to give into temptations and distractions.

What can you do about this dilemma?

Obviously, you need to get some rest (and you won’t get that sitting in front of a screen for hours on end).

But you also need tools and techniques to help you stay focused and create a buffer between you and the things that are likely to derail you and hijack your attention.

I recommend checking out Stanford university’s clever website Screentime Genie.

Screentime Genie is a big collection of screen time reduction strategies. But you won’t be left feeling overwhelmed by these tools and techniques. Here’s how it works . . .

You answer a few basic questions about the tech habits you want help with (this takes less than a minute to do). The Screentime Genie then presents you with a tailored selection of techniques to explore.

For example, let’s say you want help in the following areas:

1) Social media – I waste time on social media
2) Distractions – I get distracted while working
3) YouTube – I waste too much time watching YouTube

After answering questions about the specific platforms you use as well as your motivation levels to change (low, medium, or high), Screentime Genie pulls up from its collection the most appropriate techniques to match your current situation and motivation levels.

It recommends that you just select 2 or 3 strategies to begin with.


Professor BJ Fogg says that there are over 150 different strategies to cut down on screen use on the backend of this website. But you’ll only ever be presented with a small selection of strategies.

I think the decision to present only a few strategies at a time is smart. Imagine being presented with a list of 150+ different strategies all at once. Kind of overwhelming, right?

But when you’re only presented with a handful of strategies, you’re more likely to select one or two and actually do something. And doing something is always better than doing nothing!

How Screentime Genie could be improved

My only criticism of Screentime Genie is that some of the suggestions are a little tame and don’t go far enough. For example, there is a suggestion to delete social media from your phone and only have it on your computer. But I couldn’t see any suggestion to delete your social media accounts.

My guess is that the creators of Screentime Genie probably think the idea of deleting all your social media accounts is just way too extreme to put out there. But it’s not really that extreme when you think about it.

Back in 2017, Former Vice President of User Growth at Facebook Chamath Palihapitiya stated in a speech at the Stanford Graduate Business School that he no longer used social media (at the time he said he had posted less than 10 times in seven years). He said:

“If you feed the beast, that beast will destroy you. If you push back on it, you have a chance to control it and reign it in. And it is a point in time when people need to hard break from some of these tools, and the things that you rely on.

The short-term dopamine driven feedback loops we’ve created are destroying how society works. No civil discourse, no cooperation, misinformation, mistruth . . . it is eroding the core foundations of how people behave, by and between each other. And I don’t have a good solution. My solution is I just don’t use these tools anymore. I haven’t for years.”

I also haven’t used these tools (i.e., social media) for nearly 2 years now. I can tell you this is the simplest solution to dramatically cutting back on your screen time. And it’s one worth seriously considering.

For many years, I experimented with using lots of different plugins, Internet blocker apps, and programs to help reduce my time online (particularly on social media). These tools stopped me from getting completely screen sucked and allowed me to focus on pursuing my goals. But it took time to research, use, and manage all of these tools (and that was time with my eyes glued to a screen).

For some strange reason, it never occurred to me to just delete all my social media accounts. The penny only dropped when I read Jaron Lanier’s book 10 Arguments for Deleting your Social Media Accounts Right Now.

Lanier states:

“To free yourself, to be more authentic, to be less addicted, to be less manipulated, to be less paranoid . . . for all those marvellous reasons, delete your accounts.”

So, I hit delete.

This simple act gave me hours of my life back. It helped me to reclaim my brain. Life became simpler, too.

For this reason, I believe Screentime Genie could go further by including Jaron Lanier’s suggestion to “detach from the behaviour-modification empires [social media] for a while.” And he’s not talking about a 2-3 day digital detox like Screentime Genie suggests. Lanier is telling you to detach for at least 6 months.

But even if you do decide to delete social media from your life, this doesn’t mean you’re rejecting the Internet and all screens. You’ll still find yourself looking at and/or touching a screen hundreds of times per day (e.g., watching shows, reading the news, responding to text messages, and checking your email). Screentime Genie can help you in these other areas.

To sum up

Overall, Screentime Genie is a fabulous free resource that can assist you to cultivate a healthier relationship with technology. It provides an extensive range of strategies to reduce your screen time and be more mindful and present. So, why not give Screentime Genie a shot?

See for yourself if this little web Genie can make some of your screen time wishes come true.