Junk-learning can Damage Your Brain. Here’s How to Spot It!

Junk-learning can Damage Your Brain. Here’s How to Spot It!

What is the first thing that you associate with the phrase ‘brain damage’?

Most of us will think in terms of an accidental or unforeseen head injury that impairs a person’s cognitive abilities. But you don’t need an accident to damage your brain. The increasing amount of information that we are bombarded with every day has the potential for doing the same.

How so?
  • Our brain changes physically every time we learn something new. In our brain, all information is channelled through neural pathways. When we learn something new, our brain either opens up new pathways connecting a new set of neurons, or makes an existing pathway stronger with more connections along the same route.
  • Not everything we learn is good for our brain. Junk foods are eatables, but they do not make us healthy. Similarly, a lot of the information that we come across everyday doesn’t actually make us smarter. If the data we gather are faulty, our reasoning based on that data will be faulty too, and so will be our actions based on that reasoning.

This is ‘junk learning’. Just as junk food can make you sick, junk learning can make you dumb. Worrying still, the more your brain gets fed with junk learning the more prone it will become to pick up further junk learning because of the pathways that have already been opened up in your brain.

With too much information available at our fingertips now, we are more and more at risk of getting swayed by junk learning. So let us identify a few factors that lead to it, and how to get past them.

Change your approach to learning from knowledge acquisition to knowledge investment.

Most of what we know as ‘facts’ are changeable. Our ideas are based on facts that we learnt on the course of our formal education that stretched for a good part of two decades. But science has not been sitting idle all these years; they have made strides and in those strides many of our ‘established facts’ have been debunked or changed.

Don’t accumulate facts; invest time in understanding the underlying principles and methods. Learn things that offer long-lasting lessons instead of just current trends. Invest on building adaptability and reasoning skills, so that even if you come across unexpected facts you are capable of assimilating and judging them correctly.

Assume you know nothing.

In 1999, psychologists Justin Kruger and David Dunning introduced what is called the Dunning-Kruger Effect. The idea is: we are most confident about learning anything new right before we start learning it. The more we actually learn, the more complexity and nuances we encounter, and the more unsure we become. This causes a loss of confidence, and subsequently of interest in many of us.

Ready your mind for new things by assuming a clean-slate mindset. Always assume that you know absolutely nothing about the domain before starting to learn; in that way you’ll be protected from the discouragement your brain receives once the threshold proves too difficult.

Avoid confirmation bias.

We are all guilty of confirmation bias. This is a tendency to look for and believe information that confirms what we already think. Our brain resists new learning by employing confirmation bias because making new neural pathways is energy-consuming, and the brain’s instinct is to get things done with as little energy as possible.

Teach yourself to listen to understand, not to argue. Several educationalists, philosophers, and psychologists of the past century has stressed we learn a lot more by proving ourselves wrong than by proving ourselves right. Testing our acquired knowledge to independent verification, and engaging with sources holding differing opinions are crucial for our brain growth.

Avoid ‘celebrity’ influence.

There is a term called ‘Halo Effect’ in psychology. It means our inherent bias that makes us trust a person on one thing simply because they are an expert on a completely different thing. For example, when we trust a politician’s opinion on matters of climate over scientific studies, or a scientist’s opinion on foreign policy over a diplomat.

Before you acquire new information, always check whether the source is experienced or knowledgeable enough to provide that information.


Learning is a long-drawn process; it eats away at both our time and energy reserves, which is why most of us are resistant to learning. And yet constant learning is the only way we grow in our life and careers. So when you learn, make sure it does not go in vain by providing you with cognitive junk.


Free 3-Part Brain Training by Jim Kwik:

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Chad Sheppard
Chad Sheppard
1 year ago

Is it to understand that you don’t know what you don’t know, and to forget what you know, so you can know what you don’t know?
I enjoy your teachings so much!

Winston Cole
Winston Cole
1 year ago

Thanks, I realize that on many occasion I have listened to argue instead of listening to understand. What an ear-opener you have given me by reading your tip today.

Winston Cole
Winston Cole
1 year ago

who else has engaged herself in the practice of listening to argue instead of listening to understand?