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How Silence Affects Our Brains in A Good Way, Science Explains

How Silence Affects Our Brains in A Good Way, Science Explains

In a world that’s increasingly busy and loud, silence sells. Like clean water, silence is a resource, and can, in fact, be used as a selling point. Consider, your laptop that runs without a peep, meditation retreats, holiday getaways to remote locations, or those noise canceling headphones. Silence is the glue that binds them together.

Silence Has Been Studied by Accident

Over the years, research has emphasized how silence can calm our bodies, improve our connection with the world and actually increase the “noise” of our inner thoughts, with the majority of the research focusing on noise when coming to these conclusions, not silence.

Yes, most researchers have studied silence by accident. For instance, in a 2006 Study, where the physiological effects of music were studied, Luciano Bernardi said the following in Nautilus:

“We didn’t think about the effects of silence. That was not meant to be studied specifically.”

Nevertheless, what were the effects of silence on our brains in these studies?

Two Minutes of Silence Heightened Arousal

In the aforementioned study, Bernardi observed physiological metrics for two dozen subjects when they listened to six songs. According to Bernardi:

“During almost all sorts of music, there was a physiological change compatible with a condition of arousal.”

But what was even more surprising, was what happened when there were silent pauses – two minutes of silence proved far more relaxing than peaceful music or a longer silence played before the experiment started. One of his main findings – silence is heightened by contrasts – is supported by Neurological research, in a study by Michael Wehr in 2010.

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Silence Affects Our Auditory Cortex

The 2010 study by Michael Wehr who was observing the brains of mice during short bursts of sound produced some surprising results. Whilst a burst of sound causes the auditory cortex (that part of the brain responsible for processing sound information), to light up, silence also causes a change. A separate network of neurons in the auditory cortex fire up. Wehr says:

“When a sound suddenly stops, that’s an event just as surely as when a sound starts.”

What though happens the moment the auditory cortex fires up?

How Silence Affects our Auditory Cortex: Cell Development

This question was examined by a Duke University regenerative Biologist, Imke Kirste. In the 2013 study, she was analyzing the effects sound has on the brains of adult mice. Four groups of mice were exposed to different auditory stimuli: music, baby mouse noises, white noise, and silence.

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The silence was the control, and as with many previous studies, its effect was considered negligible. Once again though the findings were an eye-opener. All the sounds had a short-term neurological effect, but what about silence?

Two hours of silence per day led to cell development in the hippocampus – the brain area responsible for memory formation and emotions. This baffled Kirste. But after some thought she came to the following conclusion – the absence of noise was so artificial and alarming that it caused hyper-alertness in the mice.

Whilst new cell development isn’t always good for health, in this instance, the cells were becoming functioning neurons (a specialized cell that transmits nerve impulses; also known as a nerve cell). Kirste went on to say:

“We saw that silence is really helping the newly generated cells differentiate into neurons and integrate into the system.”

Silence Amplifies Self-Reflection

Not only does silence aid in cell generation, but it also aids in self-reflection. We all have what is known as the “default mode” of brain function – found in the prefrontal cortex (located in the front of the brain and responsible for abstract thinking, thought analysis and regulating thinking).

The default mode is always active, receiving and analyzing information. For example, the ability to detect danger happens automatically in this part of the brain. This default mode is also highly active during self-reflection (understanding ourselves) according to Joseph Moran who published a paper titled “What can the organization of the brain’s default mode network tell us about self-knowledge?”

According to Moran and colleagues, when the brain is in this resting mode, it is able to integrate internal and external information into a conscious workspace. When there is silence, your conscious workspace has greater freedom to process the internal and external information, allowing you to better discover your place in the world. Silence amplifies self-reflection.

And perhaps Noora Vikman, an ethnomusicologist (someone who studies music in a cultural context) and silence consultant for Finland’s marketers sums it up best:

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“If you want to know yourself you have to be with yourself, and discuss with yourself, be able to talk with yourself.”

Silence then truly is golden. It changes your brain. It changes your life.

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Last Updated on February 21, 2019

How to Improve Your Memory: 7 Natural (And Highly Effective) Ways

How to Improve Your Memory: 7 Natural (And Highly Effective) Ways

How is your memory? Is your cognitive function as strong as you’d like it to be?

If not, then you’re definitely going to be interested in the memory improvement tips I’ll be sharing with you in this article.

Despite what you might think – or have been told – improving your ability to recall information is certainly possible. You just need to know the right ways to do it. (Don’t worry, as you won’t need to make any significant lifestyle changes.)

So how to improve memory? Let’s dive straight into the first of seven easy ways to improve your memory significantly.

1. Meditate

We live in a world of non-stop, 24/7 information. It’s like a waterfall that’s endlessly pouring news, data, facts and figures into our conscious minds.

Unfortunately, our brains are not designed to absorb this tremendous amount of information. It’s no wonder then, that most people struggle to remember information and recall things.

Even if you believe you have a good memory and are comfortable with multi-tasking, you’ll also be aware that there’s only so much information your brain can process at one time. And research suggests that the more information and distractions, the harder it is for you to transfer information to your long-term memory.[1]

Fortunately, meditation can help you out.

Even if you just meditate for 10 minutes per day, you’ll boost your ability to focus, which in turn, will make it easier for you to remember important facts.

If you need help in shifting into a meditative state, I recommend trying an app like Headspace – which can assist you to achieve this in a convenient and structured way.

And don’t forget, meditation doesn’t just have to be closing your eyes and sitting in a lotus position. Some people prefer to simply take a short walk in nature. This clears and calms their mind, and still provides the all-important boost to their focus.

2. Get plenty of sleep

If you’re sleep deprived or have not been sleeping well, then I’m guessing you’re not remembering well either. This is because sleep and memory are intimately connected.

If you have a busy life and regularly find yourself not getting enough sleep, then this will negatively impact your cognitive abilities – including your memory.

How much sleep should you be getting?

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Well, according to the National Sleep Foundation, you need a minimum of seven to nine hours of sleep per night. If you get this amount of sleep regularly, then within just a few days, you’ll see a tangible improvement to your ability to remember and recall things.

Now, I’ll be honest with you, maintaining a proper sleep cycle is not always easy (especially when the latest Netflix series has just been released!). But if you care about improving your short-term and long-term ability to remember things, then it’s critical that you try to get at least the recommended amount of sleep every night.

Are there ways to hack the sleep cycle?

Yes, there are.

Try these three things:

  • Have a fixed bedtime (preferably before 10pm)
  • Don’t eat too late
  • Make sure your bedroom is as dark as possible

Sleeping is a precious activity. It regenerates your body, clears your mind, and helps with the storing and retrieval of information.

However, don’t sleep just yet, as I want to tell you about another great way to increase memory…

3. Challenge your brain

When was the last time you challenged your brain?

I don’t mean challenged in the sense of overeating or undersleeping. I’m referring to stretching your mental capabilities through things like crossword puzzles, Sudoku and memory games.

To expand your memory bank, and to make your recall razor-sharp, you need to continually challenge your brain.

Feedback from Lifehack readers such as yourself, has suggested that brain training apps are a super-effective way of doing this. Used regularly, these apps can enhance your focus, attention span, problem-thinking ability and memory.

There are hundreds of these apps available (most of them for free), but I recommend starting out with one of the big three:

  • Peak (Android/iOS, free, 10 million+ downloads)
  • Lumosity (Android/iOS, free, 10 million+ downloads)
  • Elevate (Android/iOS, free, 5 million+ downloads)

If you normally spend a chunk of your week playing computer games, then instead of shooting and killing your enemies, why not let some of them live – while you put your attention into boosting your brain power!

Challenging your brain will strengthen your neural pathways and enhance your mental abilities. But don’t just take my word for it, try one of the apps above and see the positive benefits for yourself.

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4. Take more breaks

When I think back to my days as a budding entrepreneur, I distinctively remember working all the hours under the sun – and many under the moon too!

At that time, I believed that breaks were for the weak, and to become wealthy and successful, I needed to shed blood, sweat and tears.

However, I was wrong.

Taking regular breaks is the best way to keep yourself productive, creative and alive to opportunities. It’s also the best way to learn new information.

Let me explain.

Typically, when studying lots of new information, most people will spend hours reading it – in an attempt to learn and remember the content as quickly as possible. Unfortunately, they’ve overlooked something.

Namely, extended study sessions are rarely a good thing, as your ability to retain information naturally declines after a certain period of time.

It’s similar to physical exercise. You wouldn’t attempt to train vigorously for four hours in a row. Instead, you’d take regular breaks to give your lungs, heart and muscles adequate time to recover. Failing to do this will result in muscle cramps and overexertion.

It’s the same with your brain. If you overload it with information, you’ll suffer from mental fatigue.

What’s the answer?

Make sure you take regular breaks when learning new information. I recommend at least a 10-minute break every hour. (You may also want to take a look at the Pomodoro Method.)

If you don’t want to be as regimented as that, then take breaks as soon as you find yourself losing the ability to focus on the new material. Your brain will thank you – and your learning aptitude will move up a level.

5. Learn a new skill

I love this quote, as it’s 100% true – but frequently overlooked:

“Learning never exhausts the mind.” – Leonardo da Vinci

From my experience of helping to develop the careers of dozens of Lifehack employees, I can definitively say that participating in meaningful and purposeful activities stimulates the mind. It also reduces stress and enhances health and well-being.

Let me give you an example of this:

Imagine you work for a global financial institution in one of their call centers. You take over 100 calls a day – many of them complaints. When you started the job a few months back, you were excited to be in full-time employment and working for a household name.

Unfortunately, your initial enthusiasm quickly turned into frustration.

The endless complaint calls began to take their toll on you. And the supervisors irritated you too, as they were far too interested in micro-managing you – rather than letting you work in your own way.

Now, in the story above, the ending could be that you put up with a job you didn’t like, and led a dull and frustrated working life for years and years. However, an alternative ending is this: you channeled your dissatisfaction in to learning a new skill (computer coding). It took you a year or two to get up to speed, but it allowed you to successfully upgrade your career – and the ongoing learning made the call centre job much more bearable.

Clearly, learning new skills gives you impetus, focus and something to aim for. Your brain loves to learn, and you should tap into this by always seeking our new information. And when learning becomes a habit, you’ll find your ability to remember and recall things effortlessly, becomes a habit too.

6. Start working out

If you’re not already working out regularly, then here’s another reason to do so:

Exercising for 20-30 minutes three times a week will improve your long-term memory.

Regular exercise increases blood flow in your body and supplies the brain with extra oxygen and nutrients. And a well-nourished brain is a well-functioning brain!

“But I just don’t have the time?,” I hear you say.

Not a problem.

A research has shown that a daily burst of 60 seconds of high-intensity exercise, offered many of the benefits of the longer exercise routines.[2] So, if you’re short on time – now you know what to do.

Interested in getting started?

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Here are five different ways that will help you work out:

  • Join a gym
  • Join a sports team
  • Buy a bike
  • Take up hiking
  • Dance to your favorite music

7. Eat healthier foods

I’m sure you’ve heard the expression: “You are what you eat.”

This applies to your brain too.

The food that you eat helps determine your brain’s capacity to store and recall information. A poor diet (think junk food + soda!) harms not just your physical health, but your mental health too.

Fortunately, there are several foods that are especially good for your brain and your memory. These include: blueberries, celery and dark chocolate. But anything high in antioxidants will have a positive effect on your brain and memory.

Conversely, highly-processed foods and those loaded with sugar will have a negative impact on your memory. This is due to them providing insufficient nutrients for your brain – leading you to easily suffer from mental fatigue.

Want to be mentally healthy? Then eat and drink an abundance of these for brain health:

  • Turmeric – helps new brain cells grown
  • Broccoli – protects the brain against damage
  • Nuts – improves memory
  • Green tea – enhances brain performance, memory and focus[3]
  • Fish oilfish oil supplements can increase your brain power

Here’re more brain food options that improve memory!

Final thoughts

I sincerely hope these seven memory boosting ways that I’ve covered in this article will be of help to you.

You don’t need to implement them all. I suggest just trying the ones that appeal to you.

But, if you’re serious about dramatically improving your memory, then make a start right now on adopting one or more of the ways I’ve suggested. I’m confident you won’t regret it.

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Featured photo credit: Eric Ward via unsplash.com

Reference

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