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

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    Last Updated on July 5, 2019

    5 Reasons Why You Should Always Be Yourself

    5 Reasons Why You Should Always Be Yourself

    When it comes to being yourself, there can be a lot of pressure from the outside world as it tries to influence who you are. Living in a society that is constantly developing, it’s important for you to always be yourself from the inside out. When you deeply know yourself and the boundaries that you have set, you are more likely to experience a fulfilling and rewarding life. Without knowing yourself and establishing those boundaries, you can easily be pushed around and end up on a dirt path.

    “Enter through the narrow gate. For wide is the gate and broad is the road that leads to destruction, and many enter through it. But small is the gate and narrow the road that leads to life, and only a few find it” – Matthew 7:13-14

    You have the option of taking the path that is broad or taking the path that is narrow. You can either conform to what life wants you to be, or have the courage to remain true to yourself throughout the years. It’s definitely a challenge to have a strong sense of self when we are constantly getting distracted and being influenced by the media and society’s way of life. But if you want to reach your fullest potential in life, it all starts with being yourself.

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    Why should you always be yourself?

    Because you will:

    1. Live in alignment with your values and beliefs. Being yourself is all about knowing what you believe in and the values that you live by. When you are not yourself, you will take on the values and beliefs of others. This is when you start conforming to other people’s expectations and way of thinking. When you know your values and why you do what you do, you will live according to your own values and beliefs.
    2. Establish your own identity. When you are able to have a solid foundation of being you, you are establishing your own sense of identity. No matter what happens in your life, you will always know who you are. There will be times where you may feel lost or distracted, but if you have your own identity you’ll be able to get back on the right path. Without establishing your own identity, you may easily conform and lose yourself.
    3. Build courage. It takes a great amount of courage when you decide to take the path that goes against the crowd. The reason why the majority of people take the broad path is because it’s easy. It’s easy to just follow the crowd. It’s more of a challenge when you stay true to yourself and establish your own identity. This challenge of always being yourself takes courage and inner strength. No matter what comes your way, you’ll know how to handle it.
    4. Establish boundaries. When you are always yourself, you know what your limits are and the boundaries that you have set for yourself. When people cross your boundaries, you will know. But if you don’t establish boundaries, people may very well walk all over you and take advantage of you. If you are always yourself and you establish boundaries, you are more likely to be aware when people start taking advantage of you. Create and establish your boundaries.
    5. Find focus and direction. When you are always yourself, you are more likely to have focus and direction in your life. Imagine someone who is constantly conforming to other people’s expectations. Do you think this person has focus and direction? I don’t think so. When you stay true to who you are, you are more likely to know the goals you want to accomplish and how to go about accomplishing them. You are able to stay focused and know which direction to take in order for you to accomplish your goals.

    No matter what you experience in life, the only person that will always remain constant is you.

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    Featured photo credit: María Victoria Heredia Reyes via unsplash.com

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