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How reading rewires your brain for higher intelligence and empathy
Get lost in a good book. Time and again, reading has been shown to make us healthier, smarter, and more empathic.
Fitness headlines promise staggering physical results: a firmer butt, ripped abs, bulging biceps. Nutritional breakthroughs are similar clickbait, with attention-grabbing, if often inauthentic—what, really, is a “superfood?"—means of achieving better health. Strangely, one topic usually escaping discussion has been shown, time and again, to make us healthier, smarter, and more empathic animals: reading.
Reading, of course, requires patience, diligence, and determination. Scanning headlines and retweeting quips is not going to make much cognitive difference. If anything, such sweet nothings are dangerous, the literary equivalent of sugar addiction. Information gathering in under 140 characters is lazy. The benefits of contemplation through narrative offer another story.
The benefits are plenty, which is especially important in a distracted, smartphone age in which one-quarter of American children don't learn to read. This not only endangers them socially and intellectually, but cognitively handicaps them for life. One 2009 study of 72 children ages eight to ten discovered that reading creates new white matter in the brain, which improves system-wide communication.
White matter carries information between regions of grey matter, where any information is processed. Not only does reading increase white matter, it helps information be processed more efficiently.
Reading in one language has enormous benefits. Add a foreign language and not only do communication skills improve—you can talk to more people in wider circles—but the regions of your brain involved in spatial navigation and learning new information increase in size. Learning a new language also improves your overall memory.
In one of the most fascinating aspects of neuroscience, language affects regions of your brain involving actions you're reading about. For example, when you read “soap" and “lavender," the parts of your brain implicated in scent are activated. Those regions remain silent when you read “chair." What if I wrote “leather chair?" Your sensory cortex just fired.
Continuing from the opening paragraph, let's discuss squats in your quest for a firmer butt. Picture the biomechanics required for a squat. Your motor cortex has been activated. Athletes have long envisioned their movements—Serena Williams's serve; Conor McGregor's kicks; Usain Bolt's bursts of speed—to achieve better proficiency while actually moving. That's because their brains are practicing. That is, they're practicing through visualization techniques.
Hard glutes are one thing. Novel reading is a great way to practice being human. Rather than sprints and punches, how about something more primitive and necessary in a society, like empathy? As you dive deeper into Rabbit Angstrom's follies or Jason Taylor coming of age, you not only feel their pain and joy. You actually experience it.
In one respect novels go beyond simulating reality to give readers an experience unavailable off the page: the opportunity to enter fully into other people's thoughts and feelings.
This has profound implications for how we interact with others. When encountering a 13-year-old boy misbehaving, you most likely won't think, “Well, David Mitchell wrote about such a situation, and so I should behave like this," but you might have integrated some of the lessons about young boys figuring life out and display a more nuanced understanding in how you react.
Perhaps you'll even reconsider trolling someone online regarding their political opinion, remembering that no matter how crass and inhumane a sentiment appears on screen, an actual human is sitting behind the keyboard pecking out their thoughts. I'm not arguing against engaging, but for the love of anything closely resembling humanity, argue intelligently.
Because reading does in fact make us more intelligent. Research shows that reading not only helps with fluid intelligence, but with reading comprehension and emotional intelligence as well. You make smarter decisions about yourself and those around you.
All of these benefits require actually reading, which leads to the formation of a philosophy rather than the regurgitation of an agenda, so prevalent in reposts and online trolling. Recognizing the intentions of another human also plays a role in constructing an ideology. Novels are especially well-suited for this task. A 2011 study published in the Annual Review of Psychology found overlap in brain regions used to comprehend stories and networks dedicated to interactions with others.
Novels consume time and attention. While the benefits are worthwhile, even shorter bursts of prose exhibit profound neurological effects. Poetry elicits strong emotional responses in readers and, as one study shows, listeners. Heart rates, facial expressions, and “movement of their skin and arm hairs" were measured while participants listened to poetry. Forty percent ended up displaying visible goose bumps, as they would while listening to music or watching movies. As for their craniums:
Their neurological responses, however, seemed to be unique to poetry: Scans taken during the study showed that listening to the poems activated parts of participants' brains that, as other studies have shown, are not activated when listening to music or watching films.
These responses mostly occurred near the conclusion of a stanza and especially near the end of the poem. This fits in well with our inherent need for narrative: in the absence of a conclusion our brain automatically creates one, which, of course, leads to plenty of heartbreak and suffering when our speculations prove to be false. Instead we should turn to more poetry:
There is something fundamental to the poetic form that implies, creates, and instills pleasure.
Whether an Amiri Baraka verse or a Margaret Atwood trilogy, attention matters. Research at Stanford showed a neurological difference between reading for pleasure and focused reading, as if for a test. Blood flows to different neural areas depending on how reading is conducted. The researchers hope this might offer clues for advancing cognitive training methods.
I have vivid memories of my relationship with reading: trying to write my first book (Scary Monster Stories) at age five; creating a mock newspaper after the Bernard Goetz subway shooting when I was nine, my mother scolding me for “thinking about such things"; sitting in the basement of my home in the Jersey suburbs one weekend morning, determined to read the entirety of Charlie and the Chocolate Factory, which I did.
Reading is like any skill. You have to practice it, regularly and constantly. While I never finished (or really much started) Scary Monster Stories, I have written nine books and read thousands more along the way. Though it's hard to tell if reading has made me smarter or a better person, I like to imagine that it has.
What I do know is that life would seem a bit less meaningful if we didn't share stories with one another. While many mediums for transmitting narratives across space and time exist, I've found none as pleasurable as cracking open a new book and getting lost in a story. Something profound is always discovered along the way.
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Derek is the author of Whole Motion: Training Your Brain and Body For Optimal Health. Based in Los Angeles he is working on a new book about spiritual consumerism. Stay in touch on Facebook and Twitter.
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What the world will look like 4°C warmer
Will your grandchildren live in cities on Antarctica?
Micronesia is gone – sunk beneath the waves. Pakistan and South India have been abandoned. And Europe is slowly turning into a desert. This is the world, 4°C warmer than it is now.
But there is also good news: Western Antarctica is no longer icy and uninhabitable. Smart cities thrive in newly green and pleasant lands. And Northern Canada, Scandinavia and Siberia produce bountiful harvests to feed the hundreds of millions of climate refugees who now call those regions home.
This map, which shows some of the effects a 4°C rise in average temperature could have on the planet, is 13 years old, but it seems to get more contemporary as it ages (and the planet warms). Antarctica is white with snow and ice, on the ground and, traditionally, on most maps. This map has turned the continent's western end incongruously green. And recent reports confirm that Antarctica is indeed turning green.
Few serious scientists doubt that climate change is happening, or that it is man-made. But the fact remains that many still have a hard time grasping global warming, partly as a convenient way of ignoring the destructive impact it is predicted to have.
Those on the fact-based side of this argument should realise that continuously bombarding the opposition with doom and gloom is likely to reinforce their resistance to accepting the new paradigm.
This map offers an alternative: lots of misery and disaster, but also plenty of hope and solutions. Not solutions that will lead us back to the climate of a few decades ago – costly and pointless – but solutions that work for the world as it will be, when it will be much warmer than it is now.
First, the bad news. Brown indicates 'Uninhabitable due to floods, drought or extreme weather'. Say goodbye to the Eastern Seaboard of the U.S., to Mexico and Central America, to the middle third of South America. In Africa, Mozambique and Madagascar are gone; Asia loses much of the Indian subcontinent, including all of Pakistan; Indochina is abandoned, as is most of Indonesia. As the map mentions, “The last inhabitants of (the South-west U.S. are) migrating north. The Colorado river is a mere trickle"; “Deglaciation means (Peru) is dry and uninhabitable"; and “Bangladesh is largely abandoned, as is South India. (In) Pakistan, isolated communities remain in pockets".
Orange is not much better: 'Uninhabitable desert'. That's most of the U.S. and the rest of South America, almost the entirety of Africa and the southern halves of Europe and Asia. “Deserts have encroached on (Southern Europe), rivers have dried up and the Alps are now snow-free. Goats and other hardy animals are kept at the fringes", the map predicts.
Red is for lands lost to the rising tide (assuming +4°C adds two metres to ocean levels). This may not seem a lot, but this is where populations are concentrated. In the U.S. for instance, counties directly on the shoreline constitute less than 10% of the total land area (not including Alaska), but account for 40% of the total population.

A warmer climate could even lead to reforestation in certain areas of the world, including the Sahel and Western Australia. The regions abandoned to desertification are empty, but not useless: they will be used for solar farming (green dots) and geothermal energy (red dots). Giant wind farms off the coasts of South America, Alaska and in the North Sea will generate the remainder of the planet's energy needs.
This map was first published by New Scientist, and republished by Parag Khanna for his book Connectography. Khanna speculates: “The entire population of the Arctic region today is less than 4 million. Could it be 400 million within the coming 20 years?"
Now is the time to buy property in Greenland – before it too turns green...
Map found here at Parag Khanna.
Strange Maps #842
Got a strange map? Let me know at strangemaps@gmail.com.
The secret to how scorpions, spiders, and ants puncture tough skin
These animals to grow scalpel-sharp and precisely shaped tools that are resistant to breaking.
My colleagues and I call these “heavy element biomaterials," and in a new paper, we suggest that these materials make it possible for animals to grow scalpel-sharp and precisely shaped tools that are resistant to breaking, deformation and wear.
Because of the small size of things like ant teeth, it has been hard for biologists to test how well the materials they are made of resist fractures, impacts and abrasions. My research group developed machines and methods to test these and other properties, and along with our collaborators, we studied their composition and molecular structure.
We examined ant mandible teeth and found that they are a smooth mix of proteins and zinc, with single zinc atoms attached to about a quarter of the amino acid units that make up the proteins forming the teeth. In contrast, calcified tools – like human teeth – are made of relatively large chunks of calcium minerals. We think the lack of chunkiness in heavy element biomaterials makes them better than calcified materials at forming smooth, precisely shaped and extremely sharp tools.
To evaluate the advantages of heavy element biomaterials, we estimated the force, energy and muscle size required for cutting with tools made of different materials. Compared with other hard materials grown by these animals, the wear-resistant zinc material enables heavily used tools to puncture stiff substances using only one-fifth of the force. The estimated advantage is even greater relative to calcified materials that – since they can't be nearly as sharp as heavy element biomaterials - can require more than 100 times as much force.
Biomaterials that incorporate zinc (red) and manganese (orange) are located in the important cutting and piercing edges of ant mandibles, worm jaws and other 'tools.' (Robert Schofield, CC BY-ND)
Why it matters
It's not surprising that materials that could make sharp tools would evolve in small animals. A tick and a wolf both need to puncture the same elk skin, but the wolf has vastly stronger muscles. The tick can make up for its tiny muscles by using sharper tools that focus force onto smaller regions.
But, like a sharp pencil tip, sharper tool tips break more easily. The danger of fracture is made even worse by the tendency for small animals to extend their reach using long thin tools – like those pictured above. And a chipped claw or tooth may be fatal for a small animal that doesn't have the strength to cut with blunted tools.
But we found that heavy element biomaterials are also particularly hard and damage-resistant.
From an evolutionary perspective, these materials allow smaller animals to consume tougher foods. And the energy saved by using less force during cutting can be important for any animal. These advantages may explain the widespread use of heavy element biomaterials in nature – most ants, many other insects, spiders and their relatives, marine worms, crustaceans and many other types of organisms use them.
What still isn't known
While my team's research has clarified the advantages of heavy element biomaterials, we still don't know exactly how zinc and manganese harden and protect the tools.
One possibility is that a small fraction of the zinc, for example, forms bridges between proteins, and these cross-links stiffen the material – like crossbeams stiffen a building. We also think that when a fang bangs into something hard, these zinc cross-links may break first, absorbing energy to keep the fang itself from chipping.
We speculate that the abundance of extra zinc is a ready supply for healing the material by quickly reestablishing the broken zinc-histidine cross-links between proteins.
What's next?
The potential that these materials are self-healing makes them even more interesting, and our team's next step is to test this hypothesis. Eventually we may find that self-healing or other features of heavy element biomaterials could lead to improved materials for things like small medical devices.
Robert Schofield, Research Professor in Physics, University of Oregon
This article is republished from The Conversation under a Creative Commons license. Read the original article.
Early humans migrated in and out of Arabia — based on the climate
Whenever the climate cooled, our hominin ancestors would set up shop in the Arabian Peninsula and vanish again when the planet warmed up.
- Despite being the only bridge early hominin species could have crossed to enter Eurasia, the Arabian Peninsula bears little to no evidence of early human occupation.
- Subverting expectations, a recent excavation in the Nefud Desert found tools dated to different stages of hominin evolution.
- It turns out that early humans moved in and out of the peninsula whenever the climate allowed them to do so.
We know a good deal about how early hominins — the branch of our evolutionary tree that split from chimps and bonobos up to seven million years ago — moved around their place of origin in eastern Africa. Fossils indicate they eventually made it to Eurasia through the Levant area of western Asia. This luscious green region, located on the easternmost edges of the Mediterranean, served our ancestors as the highway between two continents, one they would cross many times — in both directions.
Given how the Arabian Peninsula, a landmass that encapsulates the Levant, was our ancestors' one and only access point to the wider world, one would think evidence of their presence would stretch from Israel to Yemen. However, this is not the case. While the Levant is littered with prodigious digging sites, the paleontological and paleoenvironmental records of the peninsula's interior have remained hauntingly empty and fragmented.
That is, until today. According to a new paper published in Nature, excavations in the Nefud Desert in Saudi Arabia unearthed traces of both human and Neanderthal occupation. By shrinking their search window to wetter periods on the geologic time scale — what the authors refer to as "brief 'green' windows of reduced aridity approximately 400, 300, 200, 130-75 and 55 thousand years ago" — archaeologists were able to find a number of Low to Middle Pleistocene Age tools used by proto-humans that ventured into the region after heavy rainfall transformed the desert into a wide-open grassland.
Digging in the desert
To say the interior parts of the Arabian Peninsula have never yielded evidence of hominins would not be entirely true. The earth here hides evidence of hominins, just not of hominin settlements. Whenever archaeologists make a discovery, it is usually the remnants of a makeshift workshop site, which are very different from the cave and rock shelters that can be stumbled upon throughout the more hospitable Levant region. Did we look hard enough, though?
Excavations in northern Saudi Arabia at a site called Khall Amayshan 4 (KAM 4) suggest we did not. On the surface, the site looks like any other part of the Nefud Desert. Below ground, however, sedimentary rocks and interdunal basins tell of a time when this place used to contain a network of lakes and rivers. Such a clear and detailed preservation of this time in geologic history cannot be found anywhere else on the peninsula and was formed serendipitously when a sand dune slid atop the basin to protect it from erosion.
We know the shores at KAM 4 have been occupied by hominins several times during the Pleistocene because different phases of lake formation correspond with a "distinct lithic assemblage" — an archaeological term for stone tools and their byproducts, of which KAM 4 is filled to the brim. A 400,000-year-old assemblage contains small hand axes made from slabs of quartzite, while a 55,000-year-old deposit contains a number of Levallois flakes.
These tools can teach us several things about the hominins that made and used them. In terms of appearance and design, some assemblages at KAM 4 seem to have more in common with those found in Africa than those from the Levantine woodlands, suggesting a different migration out of Africa might have taken place — one that ended up in Arabia rather than Eurasia. "It seems," the researchers write, "that much of Northeast Africa and Southwest Asia shared similar material culture."
Climate change and migratory patterns
Hominin species did not hop continents at random; their migratory patterns were a response to the changing climate of the Pleistocene. Judging from the results of their excavation at KAM 4, researchers identified no less than five distinct movements into the Arabian Peninsula. Given that most of the tools were dated to periods that saw increased rainfall, it is safe to say our ancestors only migrated into the desert when it became hospitable enough for them to do so.
Conversely, researchers were unable to find any tools that would have been left during interglacial periods. It seems that, as the region became warmer and more arid, the hominin populations that had made their home inside the peninsula dispersed once again. The unstable environmental conditions that plagued the peninsula may well explain the fragmentation of its fossil evidence, a problem that researchers in the relatively static Levantine woodlands rarely encounter.
Because climate change and the accompanying mass migratory movements can actually erase the vast majority of a species' fossil record, these findings bear relevance to modern readers. This year's UN climate report warns of Arctic summers without ice and tropical storms that will become even more ubiquitous than they already are. What if hundreds of thousands of people have to leave their homes either temporarily or indefinitely?
TikTok tics: when Tourette's syndrome went viral
Once limited in range, mass hysteria can now spread across the globe in an instant.
