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What percentage of our brain do we use?

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The brain is the most complex organ in the human body. Many believe that a person only ever uses 10 percent of their brain. Is there any truth to this?

A person’s brain determines how they experience the world around them. The brain weighs about 3 pounds and contains around 100 billion neurons — cells that carry information.

In this article, we explore how much of the brain a person uses. We also bust some widely held myths and reveal some interesting facts about the brain.

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According to a survey from 2013, around 65 percent of Americans believe that we only use 10 percent of our brain.

But this is just a myth, according to an interview with neurologist Barry Gordon in Scientific American. He explained that the majority of the brain is almost always active.

The 10 percent myth was also debunked in a study published in Frontiers in Human Neuroscience.

One common brain imaging technique, called functional magnetic resonance imaging (fMRI), can measure activity in the brain while a person is performing different tasks.

Using this and similar methods, researchers show that most of our brain is in use most of the time, even when a person is performing a very simple action.

A lot of the brain is even active when a person is resting or sleeping.

The percentage of the brain in use at any given time varies from person to person. It also depends on what a person is doing or thinking about.

It’s not clear how this myth began, but there are several possible sources.

In an article published in a 1907 edition of the journal Science, psychologist and author William James argued that humans only use part of their mental resources. However, he did not specify a percentage.

The figure was referenced in Dale Carnegie’s 1936 book How to Win Friends and Influence People. The myth was described as something the author’s college professor used to say.

There is also a belief among scientists that neurons make up around 10 percent of the brain’s cells. This may have contributed to the 10 percent myth.

The myth has been repeated in articles, TV programs, and films, which helps to explain why it is so widely believed.

Like any other organ, the brain is affected by a person’s lifestyle, diet, and the amount that they exercise.

To improve the health and function of the brain, a person can do the following things.

Eating well improves overall health and well-being. It also reduces the risk of developing health issues that may lead to dementia, including:

  • cardiovascular disease

  • midlife obesity

  • type 2 diabetes

The following foods promote brain health:

  • Fruits and vegetables with dark skins. Some are rich in vitamin E, such as spinach, broccoli, and blueberries. Others are rich in beta carotene, including red peppers and sweet potatoes. Vitamin E and beta carotene promote brain health.

  • Oily fish. These types of fish, such as salmon, mackerel, and tuna, are rich in omega-3 fatty acids, which may support cognitive function.

  • Walnuts and pecans. They are rich in antioxidants, which promote brain health.

  • Regular exercise also reduces the risk of health problems that may lead to dementia.

    Cardiovascular activities, such as walking briskly for 30 minutes a day, can be enough to reduce the risk of brain function declining.

    Other accessible and inexpensive options include:

    • bike riding

    • jogging

    • swimming

      The more a person uses their brain, the better their mental functions become. For this reason, brain training exercises are a good way to maintain overall brain health.

      A recent study conducted over 10 years found that people who used brain training exercises reduced the risk of dementia by 29 percent.

      The most effective training focused on increasing the brain’s speed and ability to process complex information quickly.

       There are a number of other popular myths about the brain. These are discussed and dispelled below.

    • Many believe that a person is either left-brained or right-brained, with right-brained people being more creative, and left-brained people more logical.

      However, research suggests that this is a myth — people are not dominated by one brain hemisphere or the other. A healthy person is constantly using both hemispheres.

      It is true that the hemispheres have different tasks. For instance, a study in PLOS Biologydiscussed the extent to which the left hemisphere is involved in processing language, and the right in processing emotions.

      Long-term alcoholism can lead to a number of health problems, including brain damage.

      It is not, however, as simple as saying that drinking alcohol kills brain cells — this is a myth. The reasons for this are complicated.

      If a woman drinks too much alcohol while pregnant, it can affect the brain development of the fetus, and even cause fetal alcohol syndrome.

      The brains of babies with this condition may be smaller and often contain fewer brain cells. This may lead to difficulties with learning and behavior.

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Health & Lifestyle

DR Congo blame Unending Ebola Outbreak on Violence , Community Mistrust.

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DR Congo Ministry of Health spokesperson Jessica Ilunga has declared that violence and community mistrust have continued to hamper all efforts to control and end the fresh Ebola outbreak, which started Aug. 1.



Though according to the World Health Organization the number of new Ebola cases has dropped slightly in the Democratic Republic of the Congo as there are 33% fewer cases to date in February compared with the same time period in December per STAT’s Helen Branswell, but some experts warn Axios that there remain signs that this outbreak is far from over.

Meanwhile, some experts warn that, that doesn’t mean the world’s second-largest Ebola outbreak on record is yet under control, and in fact it could simply be moving to new areas of the sprawling country.

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Johns Hopkins’ public health expert Jennifer Nuzzo maintains there are several reasons people should continue to view this outbreak as a cause for concern.

However, Nuzzo said Congo needs more than money from the international community and the U.S. in particular. Safety concerns have largely caused the CDC to limit its Ebola experts to the capital city of Kinshasa, where some have returned after being evacuated during an uptick in election-related violence, Nuzzo added that Now is the time for the U.S. to send them into the field.

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Health & Lifestyle

Sports head injuries Balanced reportage is required – Experts

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A group of more than 60 leading international neuroscientists, including Mark Herceg, PhD, a neuropsychologist at Northwell Health’s Phelps Hospital in Sleepy Hollow, NY, and a member of The Feinstein Institute for Medical Research, published a correspondence today in The Lancet Neurology, asking for balance when reporting on sports-related injury chronic traumatic encephalopathy (CTE). CTE is a type of dementia associated with exposure to repeated concussions, and has been linked with a variety of contact sports such as boxing, football, American football and rugby.



Although CTE is commonly featured in the news media and discussed among peers, the medical community is just beginning to understand how to recognize the disease, guidelines for how to assess its severity have yet to be established.

“We don’t currently have a clear understanding of the link between CTE pathology and any specific symptoms,” noted Dr. Herceg. “It’s important to note to the public at large that CTE is at an early stage of scientific and medical understanding, with many important aspects of the disease yet to be established.”

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“Dr. Herceg and his colleague’s CTE research is timely and impactful as a major step forward to more clearly defining the risk and prevalence of this important syndrome,” said Kevin J. Tracey, MD, president and CEO of the Feinstein Institute.

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-Northwell Health

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