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Alert: Long Distance Running Can Make Your Brain Shrink, Study Finds

Alert: Long Distance Running Can Make Your Brain Shrink, Study Finds

Studies on short-term exercise tell us that exercise leads to increased neurogenesis (growth of brain cells) and improved mental performance. Yet, Dr Shütz and his team from the Department of Diagnostic and Interventional Radiology at the University Hospital of Ulm in Germany, recently revealed some controversial findings at the annual meeting of the Radiological Society of North America (RSNA). Shütz found that the brain volume of the runners of an ultramarathon, had reduced by 6.1% after the race.

Research background

Dr Shütz and his team studied a group of 44 ultramarathon runners participating in the TransEurope-FootRace (TEFR), a 64-day race spanning 4487km (2788 miles) from southern Italy to the Northern Cape of Norway without a single day’s rest. This is like doing around 100 marathons in a row.
They examined the effect of the extreme long distance running on the musculoskeletal system (that is the bones, joints, cartilage, muscles and tendons) but the study also revealed some interesting findings about the brain. “Our research provides detailed information on how the various organ systems change and adapt in response to that stress” says Dr Shütz, describing the goals of the study.

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The researchers scanned the runners’ brains to see how the marathon impacted brain volume.

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Brain scans

    Findings

    At the end of the race, the MRI brain scans revealed a 6.1% decrease in the grey matter (the bulk of the brain) of the runners predominantly affecting specific areas. The scan (image above) taken from the study shows the brain volume decreasing as you follow the dotted lines from left to right, through the different stages of the race. Shütz thinks that the loss of brain volume is due to understimulation. One of the four main regions of the brain that appears to be particularly affected is the area that is involved in visual processing. Shütz postulates that viewing nothing more than long roads for 64 days resulted in that part of the brain being unstimulated hence the reduction in volume. Others believe that the change is due to a concept called structural neuroplasticity. This is where the brain reorganizes and changes itself structurally based on the environment.

    A good example of structural neuroplasticity, comes from a study that found that London taxi drivers have a larger part of the brain involved in navigation than London bus drivers. This makes sense, as taxi drivers have to navigate all around London, while bus drivers are limited to the set route. Their environment has affected the structure of their brains. In the case of the marathon runners, it is suggested that the reorganization in the brain could occur in areas involved in the motivational process and the levels of exertion experienced due to the nature of the race.

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    So, what should you do?

    You don’t have to throw your runners over the power line, just yet. There is no evidence to suggest that running around the park has any impact on brain size, in fact regular exercise may increase brain size. “Although the finding on the loss of grey matter volume while running is astonishing” Dr. Schütz said, “It is not cause for alarm”. Remember, this study was conducted on ultramarathon runners on a nonstop 64-day race.

    As for the brain, “It is hard to explain what’s going on…” Lead researcher, Dr. Schütz told New Scientist. “But we do see total recovery after six months.” So when you’re planning your next ultramarathon, make sure to account for 6 months brain recovery!

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    Featured photo credit: Chanan Greenblatt via unsplash.com

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    Last Updated on March 24, 2021

    8 Smart Home Gadgets You Need in Your House

    8 Smart Home Gadgets You Need in Your House

    We’ve all done it. We’ve gone out and bought useless gadgets that we don’t really need, just because they seemed really cool at the time. Then, we are stuck with a bunch of junk, and end up tossing it or trying to sell it on Ebay.

    On the other hand, there are some pretty awesome tech inventions that are actually useful. For instance, many of the latest home gadgets do some of your work for you, from adjusting the home thermostat to locking your front door. And, if used as designed, these tools should really help to make your life a lot easier—and that’s not just a claim from some infomercial trying to sell you yet another useless gadget.

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    Take a look at some of the most popular “smart gadgets” on the market:

    1. Smart Door Locks

    A smart lock lets you lock and unlock your doors by using your smartphone, a special key fob, or biometrics. These locks are keyless, and much more difficult for intruders to break into, making your home a lot safer. You can even use a special app to let people into your home if you are not there to greet them.

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    2. Smart Kitchen Tools

    Wouldn’t you just love to have a pot of coffee waiting for you when you get home from work? What about a “smart pan” that tells you exactly when you need to flip that omelet? From meat thermometers to kitchen scales, you’ll find a variety of “smart” gadgets designed to make culinary geeks salivate.

    3. Mini Home Speaker Play:1

    If you love big sound, but hate how much space big speakers take up, and if you want a stereo system that is no bigger than your fist, check out the Play:1 mini speaker. All you have to do is plug it in, connect, and then you can stream without worrying about any interruptions or interface. You can even add onto it, and have different music playing in different rooms.

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    4. Wi-Fi Security Cameras

    These are the latest in home security, and they connect to the Wi-Fi in your home. You can use your mobile devices to monitor what is going on in your home at all times, no matter where you are. Options include motion sensors, two-way audio, and different recording options.

    5. Nest Thermostat

    This is a thermostat that lives with you. It can sense seasonal changes, temperature changes, etc., and it will adjust itself automatically. You will never have to fiddle with a thermostat dial or keypad again, because this one basically does all of the work for you. It can also help you to save as much as 12% on heating bills, and 15% on cooling bills.

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    6. Smart Lighting

    Control your home lighting from your remote device. This is great if you are out and want to make sure that there are some lights on. It is designed to be energy efficient, so it will pay for itself over time because you won’t have to spend so much on your monthly energy bills.

    7. Google Chromecast Ultra

    Whether you love movies, television shows, music, etc., you can stream it all using Google Chromecast Ultra. Stream all of the entertainment you love in up to 4K UHD and HDR, for just $69 monthly.

    8. Canary

    This home security system will automatically contact emergency services when they are needed. This system offers both video and audio surveillance, so there will be evidence if there are any break-ins on your property. You can also use it to check up on what’s happening at home when you are not there, including to make sure the kids are doing their homework.

    Featured photo credit: Karolina via kaboompics.com

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