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Star neuroscientist Andrew Huberman breaks down two simple exercises to improve vision

The eyes are muscles like any other and need both stimulation and relaxation.

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Treat the eyes like a muscle. Give them exercise and relaxation.

We spend a lot of time looking at things up close, particularly our screens. For many of us, it’s the first thing we look at in the morning, the last thing we look at before going to sleep, and the thing we look at most during all those hours in between. According to a study commissioned by Vision Direct, the average American will spend 44 years looking at a screen. You read that right. Over. Four. Decades.

Really, it’s no wonder that eyesight has worsened. Experts have declared that myopia, aka nearsightedness, has grown to an epidemic level. In addition, we suffer more headaches and migraines, get poor sleep, and tend to feel more fatigued.

Luckily, there are a few things we can do to help, whether we boast 20/20 vision or are already constantly squinting.

Neuroscientist Andrew Huberman, well known for his podcast “Huberman Lab,” breaks down all kinds of science-based life hacks for health, wellness, and fitness.

In addition to studying the brain, one of Huberman’s main research topics is vision. In a video, Huberman shares two simple exercises that can dramatically help improve eyesight.

First and foremost, we need to allow our vision to relax.

You can’t do this just by looking up from your computer screen. Instead, Huberman suggests going to a window and looking out at a point in the distance. Ideally, you would open the window because windows filter out a lot of the blue light and sunlight that you want during the daytime. Better yet, go to a balcony, relax your eyes, and look out at the horizon. This allows the eyes to relax and go into panoramic vision, relieving stress and fatigue.

According to Huberman, you should be doing some kind of relaxation of the eyes, face, and jaw for every 30 minutes of focused work—which works out to at least every 90 minutes.

Second, stimulate the eyes by focusing on motion.

Smooth pursuit is our natural ability to track individual objects moving through space. You can train or improve your vision simply by stimulating this mechanism. To do this, Huberman suggests taking a few minutes each day or every three days to visually track a ball. Or, get outside and watch objects move around. Think swooping birds, falling leaves, etc. If you couldn’t tell, Huberman is a big proponent of going outside.

Bottom line: Our eyes are muscles. Just like our biceps, they need stimulation and relaxation, and while we might not be able to get this kind of nourishment from our tiny screens, nature provides.

This article originally appeared last year.

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A juice company dumped orange peels in a national park. Here's what it looks like now.

12,000 tons of food waste and 21 years later, this forest looks totally different.

In 1997, ecologists Daniel Janzen and Winnie Hallwachs approached an orange juice company in Costa Rica with an off-the-wall idea. In exchange for donating a portion of unspoiled, forested land to the Área de Conservación Guanacaste — a nature preserve in the country's northwest — the park would allow the company to dump its discarded orange peels and pulp, free of charge, in a heavily grazed, largely deforested area nearby.

One year later, one thousand trucks poured into the national park, offloading over 12,000 metric tons of sticky, mealy, orange compost onto the worn-out plot.

The site was left untouched and largely unexamined for over a decade. A sign was placed to ensure future researchers could locate and study it.

16 years later, Janzen dispatched graduate student Timothy Treuer to look for the site where the food waste was dumped.

Treuer initially set out to locate the large placard that marked the plot — and failed.

The first deposit of orange peels in 1996.

Photo by Dan Janzen.

"It's a huge sign, bright yellow lettering. We should have been able to see it," Treuer says. After wandering around for half an hour with no luck, he consulted Janzen, who gave him more detailed instructions on how to find the plot.

When he returned a week later and confirmed he was in the right place, Treuer was floored. Compared to the adjacent barren former pastureland, the site of the food waste deposit was "like night and day."

The site of the orange peel deposit (L) and adjacent pastureland (R).

Photo by Leland Werden.

"It was just hard to believe that the only difference between the two areas was a bunch of orange peels. They look like completely different ecosystems," he explains.

The area was so thick with vegetation he still could not find the sign.

Treuer and a team of researchers from Princeton University studied the site over the course of the following three years.

The results, published in the journal "Restoration Ecology," highlight just how completely the discarded fruit parts assisted the area's turnaround.

The ecologists measured various qualities of the site against an area of former pastureland immediately across the access road used to dump the orange peels two decades prior. Compared to the adjacent plot, which was dominated by a single species of tree, the site of the orange peel deposit featured two dozen species of vegetation, most thriving.

Lab technician Erik Schilling explores the newly overgrown orange peel plot.

Photo by Tim Treuer.

In addition to greater biodiversity, richer soil, and a better-developed canopy, researchers discovered a tayra (a dog-sized weasel) and a giant fig tree three feet in diameter, on the plot.

"You could have had 20 people climbing in that tree at once and it would have supported the weight no problem," says Jon Choi, co-author of the paper, who conducted much of the soil analysis. "That thing was massive."

Recent evidence suggests that secondary tropical forests — those that grow after the original inhabitants are torn down — are essential to helping slow climate change.

In a 2016 study published in Nature, researchers found that such forests absorb and store atmospheric carbon at roughly 11 times the rate of old-growth forests.

Treuer believes better management of discarded produce — like orange peels — could be key to helping these forests regrow.

In many parts of the world, rates of deforestation are increasing dramatically, sapping local soil of much-needed nutrients and, with them, the ability of ecosystems to restore themselves.

Meanwhile, much of the world is awash in nutrient-rich food waste. In the United States, up to half of all produce in the United States is discarded. Most currently ends up in landfills.

The site after a deposit of orange peels in 1998.

Photo by Dan Janzen.

"We don't want companies to go out there will-nilly just dumping their waste all over the place, but if it's scientifically driven and restorationists are involved in addition to companies, this is something I think has really high potential," Treuer says.

The next step, he believes, is to examine whether other ecosystems — dry forests, cloud forests, tropical savannas — react the same way to similar deposits.

Two years after his initial survey, Treuer returned to once again try to locate the sign marking the site.

Since his first scouting mission in 2013, Treuer had visited the plot more than 15 times. Choi had visited more than 50. Neither had spotted the original sign.

In 2015, when Treuer, with the help of the paper's senior author, David Wilcove, and Princeton Professor Rob Pringle, finally found it under a thicket of vines, the scope of the area's transformation became truly clear.

The sign after clearing away the vines.

Photo by Tim Treuer.

"It's a big honking sign," Choi emphasizes.

19 years of waiting with crossed fingers had buried it, thanks to two scientists, a flash of inspiration, and the rind of an unassuming fruit.


This article originally appeared seven years ago.

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Scientists just solved the chicken-and-egg debate, so what will we argue about now?

A billion-year-old discovery has officially cracked the ultimate evolutionary mystery.

Richard Symonds

This handsome gent just got some bad news.

In the ultimate mic-drop for chicken-or-egg debaters, Chromosphaera perkinsii, a billion-year-old unicellular organism, reveals that nature had "eggs" on the menu way before chickens (or any animals) arrived. But, though the mystery has been unscrambled, the discovery has cracked open an entirely new chapter in the story of life's origins.

Meet Chromosphaera perkinsii, a single-celled organism found in marine sediments off Hawaii that threw evolutionary biologists a curveball. This tiny protist, dating back more than a billion years, does something remarkable: it organizes itself into multicellular structures that look exactly like the earliest stages of animal embryos.

A sequence of images showing Chromosphaera perkinsii forming a colony. It looks like images you may have seen of early cell division, but this is of individual Chromosphaera perkinsii forming a colony. © UNIGE Omaya Dudin

Nature’s OG egg

Researchers from the University of Geneva (UNIGE), led by Omaya Dudin, have spent years studying this humble organism, and the findings are nothing short of stunning. Unlike most single-celled creatures, C. perkinsii can coordinate cell division without growing larger. Instead, it creates colonies that resemble the first steps of animal embryonic development.

"Although C. perkinsii is a unicellular species, this behaviour shows that multicellular coordination and differentiation processes are already present in the species, well before the first animals appeared on Earth."

— Omaya Dudin

Even more mind-blowing? When scientists analyzed the genetic activity within these colonies, they found it eerily similar to what happens in the embryos of modern animals. The processes that allow embryos to grow from a single cell into a multicellular organism—a hallmark of animal life—were apparently hanging out in the evolutionary toolbox long before animals even existed.

via GIPHY

A billion years of practice

The study, published in Nature, even raises the possibility that multicellularity evolved multiple times in different lineages, meaning the transition from single-celled life to complex organisms could be less linear (and more chaotic) than previously believed.

"It’s fascinating, a species discovered very recently allows us to go back in time more than a billion years."

— Marine Olivetta

The research could also reignite debates about mysterious 600-million-year-old fossils that look like embryos. Are they early animals or ancient organisms like C. perkinsii? Either way, this tiny protist suggests that nature was testing out egg-like developmental strategies long before anything resembling a chicken—or even a jellyfish—arrived on the scene.

The egg’s ultimate win

For anyone still clinging to the chicken in this debate, it’s time to throw in the towel. The egg wins by a landslide. And while these ancient “eggs” might not have shells or yolks, they set the stage for the evolutionary leaps that eventually gave us the breakfast staple we know today.

Still not convinced? Neil deGrasse Tyson shares the evolutionary approach to the puzzle. He bluntly points out that the egg came first; it was just laid by a bird that was not a chicken.

@neildegrassetyson we've cracked the case over which came first, chicken or egg! 🐣 #scienceflex
♬ original sound - StarTalk

Discoveries like this remind us how much we still don’t know about the origins of life. If a billion-year-old protist can hold the key to one of our oldest questions, imagine what else nature has waiting for us in its archives. But one thing’s certain: we finally have our answer. The egg was here first, and it’s been waiting for us to catch up for over a billion years.

So, with that settled, we are now tasked with finding something else to argue about. Science has yet to weigh in on the tree in the woods. Perhaps that puzzle will be the next to fall.

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Surprising 16-year-long ADHD study reveals opposite of what researchers expected

The findings shed new light on how we might one day understand and manage ADHD.

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Our understanding of ADHD has come a long way in just a few short years.

It wasn't even formally recognized as a medical condition until the 1960s! By the time the 90s rolled around, diagnoses and stimulant prescriptions were extremely prevalent.

Today, diagnoses and treatment are a lot more thoughtful and individualized, and there are more options for treatment and therapy. But we still have more to learn.

A new long-term study published in the Journal of Clinical Psychiatry has proven to be an excellent next step in getting a better understanding of the disorder.

483 participants who were diagnosed with ADHD in childhood were assessed for a period of 16 years. The study's authors wanted to get a sense of how ADHD symptoms might change over time.

What the researchers found surprised them.

In most participants, symptoms of ADHD fluctuated greatly over the years. What surprised them even more were the environmental factors that seemed to play a role in those fluctuations.


a close up of a human brain on a white background Photo by BUDDHI Kumar SHRESTHA on Unsplash

Researchers expected that greater life demands — like more responsibility at work, a heavier workload at school, major life changes, etc. — would exacerbate ADHD symptoms. What they found was the opposite.

It makes sense that a person that struggles with inattention or hyperactivity might have more trouble focusing when they have more "going on," more distractions to pull them in different directions.

It was a huge surprise to the researchers that, actually, people's ADHD symptoms seemed to ease up when life got hectic.

“We expected the relationship between environmental demands and ADHD symptoms to be the opposite of what we found,” study author, professor, and clinical psychologist Margaret H. Sibley explained. “We hypothesized that when life demands and responsibilities increased, this might exacerbate people’s ADHD, making it more severe. In fact, it was the opposite. The higher the demands and responsibilities one was experiencing, the milder their ADHD.”

I have a 4-year-old with ADHD and the findings totally track for me.

We find it's actually easier to be in perpetual motion sometimes — out running errands, doing activities, visiting friends and family — versus staying put too long. When we're just relaxing at home, that's when she tends to start bouncing off the walls!

Doing nothing or doing very little is not often a restful state for people with ADHD.

Their brains have more background noise than neurotypical brains — so a quiet, seemingly restful environment can sometimes amplify racing thoughts, negative self-talk, and impulsive behavior versus dampening it.

Of course, as always in science, you have to be careful assuming causation from the findings.

a boy doing schoolwork at wooden deskAnnie Spratt/Unsplash

The results of the study don't definitively prove that being busy causes a decrease in ADHD symptoms.

“This might mean that people with ADHD perform their best in more demanding environments (perhaps environments that have stronger immediate consequences, like needing to put food on the table for a family or pay rent monthly). It also might mean that people with ADHD take more on their plate when their symptoms are relatively at bay," Sibley says.

But the correlation is certainly strong and worthy of more study.

In the meantime, the study's authors think the results could be viewed in a hopeful light for people just learning to manage their ADHD.

“If you’re a doctor talking with a patient who is first getting diagnosed with ADHD, it’s a huge help for that person to hear the message that, ‘You’re going to have good years and not-so-good years, but things can go really well for you if you can get the right factors in place,'” Sibley said.

We're learning more and more about what those factors are — what might exacerbate symptoms, what types of things can help. And we're starting to get a better and better picture of how people can manage this challenging disorder.

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