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Your brain uses 20% of the oxygen that enters your bloodstream. The brain only makes up about 2% of our body mass, yet consumes more oxygen than any other organ in the body, making it extremely susceptible to damage related to oxygen deprivation. So breathe deep to keep your brain happy and swimming in oxygenated cells. |
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| There are no conversations. |
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| Thomas R. Insel |
Most of our brain cells are glial cells, once thought to be mere support cells, but now understood as having a critical role in brain function. Glial cells in the human brain are markedly different from glial cells in other brains, suggesting that they may be important in the evolution of brain function. |
| David Baltimore |
When we talk about stem cells, we are actually talking about a complicated series of things, including adult stem cells which are largely cells devoted to replacing individual tissues like blood elements or liver or even the brain. |
| David Eagleman |
Your brain is built of cells called neurons and glia - hundreds of billions of them. Each one of these cells is as complicated as a city. |
| Mark Haddon |
I have very fond memories of swimming in Walden Pond when we lived in Boston. You'd swim past a log and see all these turtles sunning themselves. Slightly disturbing if you thought about how many more were swimming around your toes, but also rather wonderful. |
| Ronald Reagan |
Freedom is never more than one generation away from extinction. We didn't pass it to our children in the bloodstream. It must be fought for, protected, and handed on for them to do the same. |
| David Baltimore |
When are we going to say cancer is cured? I'm not sure when that will happen, if that will happen because cancer is a very slippery disease and it involves a vast number of cells in the body and those cells are continually mutating. |
| Clare Balding |
Swimming and athletics are the big gigs at the Olympic games. Cycling and rowing are pretty big for Britain, but globally, the two big things are athletics and swimming. |
| Bill Ackman |
I'm an extremely, extremely persistent person. Extremely. And when I believe I am right, and it is important, I will go to the end of the earth. |
| Francois Fenelon |
Nothing is more despicable than a professional talker who uses his words as a quack uses his remedies. |
| Nelson Mandela |
We pledge ourselves to liberate all our people from the continuing bondage of poverty, deprivation, suffering, gender and other discrimination. |
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80% of the brain is water. Your brain isn’t the firm, gray mass you’ve seen on TV. Living brain tissue is a squishy, pink and jelly-like organ thanks to the loads of blood and high water content of the tissue.
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Sleep Deprivation Disrupts Brain-Cell Communication, Study Finds (npr.org)
A new study published in the journal Nature Medicine found that sleep deprivation causes the bursts of electrical activity that brain cells use to communicate to become slower and weaker. "The finding could help explain why a lack of sleep impairs a range of mental functions, says Dr. Itzhak Fried, an author of the study and a professor of neurosurgery at the University of California, Los Angeles," reports NPR. From the report:
The finding comes from an unusual study of patients being evaluated for surgery to correct severe epilepsy. As part of the evaluation, doctors place wires in the brain to find out where a pat...
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Alcohol Can Cause Irreversible Genetic Damage To Stem Cells, Says Study (theguardian.com)
A new study, published on Wednesday, states that drinking alcohol produces a harmful chemical in the body which can lead to permanent genetic damage in the DNA of stem cells, increasing the risk of cancer developing. From a report:
The research, using genetically modified mice, provides the most compelling evidence to date that alcohol causes cancer by scrambling the DNA in cells, eventually leading to deadly mutations. During the past decade, there has been mounting evidence of the link between drinking and the risk of certain cancers. "How exactly alcohol causes damage to us is controversial," said ...
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As the brain is a composite material, made up of grey matter, white matter and fluids, the researchers use data from medical imaging, such as MRI to decompose the brain into subvolumes, similar to lego blocks. The color of each lego block depends on which material it represents: white, grey or fluid. This colour-coded "digital lego brain" consists of thousands of these interacting and deforming blocks which are used to compute the deformation of the organ under the action of the surgeon.
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t is well known that a high salt diet leads to high blood pressure, a risk factor for an array of health problems, including heart disease and stroke. But over the last decade, studies across human populations have reported the association between salt intake and stroke irrespective of high blood pressure and risk of heart disease, suggesting a missing link between salt intake and brain health.
Interestingly, there is a growing body of work showing that there is communication between the gut and brain, now commonly dubbed the gut–brain axis. The disruption of the gut–brain axis contributes to a diverse range of diseases, including Parkinson’s disease and irritable bowel syndrome. Consequently, the developing field of gut–brain axis research is rapidly growing and evolving. Five years ago...
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Counter-intuitively, Koubeissi’s team found that the woman’s loss of consciousness was associated with increased synchrony of electrical activity, or brainwaves, in the frontal and parietal regions of the brain that participate in conscious awareness. Although different areas of the brain are thought to synchronise activity to bind different aspects of an experience together, too much synchronisation seems to be bad. The brain can’t distinguish one aspect from another, stopping a cohesive experience emerging.
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You learn while you sleep. Your brain is filing the days info, reviewing and practicing skills, organizing thoughts and all kinds of other stuff besides just resting your body.
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Open Mike Eagle's brain was studied using an fMRI to determine the differences of how your brain reacts while freestyling, compared to a rehearsed performance.
https://www.nature.com/articles/srep00834
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The brain itself cannot feel pain. While the brain might be the pain center when you cut your finger or burn yourself, the brain itself does not have pain receptors and cannot feel pain.
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Tantalizing But Preliminary Evidence of a 'Brain Microbiome'
An anonymous reader quotes a report from Science Magazine:
We know the menagerie of microbes in the gut has powerful effects on our health. Could some of these same bacteria be making a home in our brains? A poster presented here this week at the annual meeting of the Society for Neuroscience drew attention with high-resolution microscope images of bacteria apparently penetrating and inhabiting the cells of healthy human brains. The work is preliminary, and its authors are careful to note that their tissue samples, collected from cadavers, could have been contaminated. But to many passersby in the exhibit hall, the possibility t...
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