Get the key ideas from

In Praise of Walking

The new science of how we walk and why it’s good for us

By Shane O'Mara
12-minute read
Audio available
In Praise of Walking by Shane O'Mara

In Praise of Walking (2019) examines the science behind one of the basic skills that defines us as human beings. By walking more, you can boost your physical and mental health – and become more creative and social.

  • Science fans keen to learn about the body and the mind
  • Walking enthusiasts
  • People looking for a reason to do more exercise

Neuroscientist Shane O’Mara is Professor of Experimental Brain Research at Trinity College Dublin. He is the Principal Investigator at the college’s Institute of Neuroscience and is also a Wellcome Trust Senior Investigator. His previous books are Why Torture Doesn’t Work: The Neuroscience of Interrogation and A Brain for Business – A Brain for Life.

Go Premium and get the best of Blinkist

Upgrade to Premium now and get unlimited access to the Blinkist library. Read or listen to key insights from the world’s best nonfiction.

Upgrade to Premium

What is Blinkist?

The Blinkist app gives you the key ideas from a bestselling nonfiction book in just 15 minutes. Available in bitesize text and audio, the app makes it easier than ever to find time to read.

Discover
4,000+ top
nonfiction titles

Get unlimited access to the most important ideas in business, investing, marketing, psychology, politics, and more. Stay ahead of the curve with recommended reading lists curated by experts.

Join Blinkist to get the key ideas from
Get the key ideas from
Get the key ideas from

In Praise of Walking

The new science of how we walk and why it’s good for us

By Shane O'Mara
  • Read in 12 minutes
  • Audio & text available
  • Contains 7 key ideas
Upgrade to Premium Read or listen now
In Praise of Walking by Shane O'Mara
Synopsis

In Praise of Walking (2019) examines the science behind one of the basic skills that defines us as human beings. By walking more, you can boost your physical and mental health – and become more creative and social.

Key idea 1 of 7

Moving around might seem simple, but it requires brain power.

In these blinks we’re going to be talking about how humans walk. But first, let’s consider a very different creature: the humble sea squirt.

In its early stages of development, the sea squirt darts around in rock pools in search of food. To facilitate this movement, the young sea squirt develops one eye, a brain, and a spinal cord.

But then, one day, the sea squirt undergoes a pretty major transition. It finds a rock, attaches itself to it, and never moves again. Stuck in place, it then eats its brain, eye, and spinal cord. It just doesn’t need them anymore.

Why are we telling you this? Well, the lesson the sea squirt teaches us is this: if you don’t move around, you might as well eat your brain – literally.

The key message here is: Moving around might seem simple, but it requires brain power.

OK, sure. But humans aren’t quite the same as sea squirts! Right? Actually, we might be a little closer than you’d imagine.

Developmental biologists recently compared the genes of two seemingly different species: the little skate – a type of fish – and the mouse. And it turns out they share many genes related to movement. These shared genes determine their spinal cords, the placement of their limbs or fins, and the nearby muscles and nerves. This research shows that genes relating to walking stretch so far back in evolutionary history that they mostly developed underwater.

However, although we share so much with our ancestors, human walking is unique. Even our closest relatives, apes, generally use all four limbs. So why did we evolve to be upright? Well, our method of walking on two legs is more efficient. We can cover greater distances and carry stuff as we go – whether it’s children, weapons, or food.

Yet as efficient as it might be, walking on two legs is hard. When they’re learning, toddlers take an average of 2,368 steps – and 17 falls – per hour. And robots have yet to fully excel at human-style walking.

We have our brains to thank for mastering this complex task. One thing the brain is particularly good at is staying balanced. It does this via inertial guidance, which means it’s continuously calculating to calibrate our position. Trace the line from the corner of your eye to your ear canal; your brain will always try to keep this line parallel with the ground.

Not every aspect of walking is controlled by the brain, though. The spinal cord handles the central pattern generators that control the rhythmic patterns we need for breathing, the beating of the heart, and walking.

The spinal cord, you’ll recall, is another thing the adult sea squirt eats once it’s secured to its rock. We humans, though, make the most of our ability to move around. You could say walking rocks!

Upgrade to continue Read or listen now

Key ideas in this title

Upgrade to continue Read or listen now

No time to
read?

Pssst. Sign up to your secret to success: key ideas from top nonfiction in just 15 minutes.
Created with Sketch.