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Curious where our technology will take us? Wonder what will become of all our notifications and reminders? Take a view of this video, and get an idea.
Though I find it beautiful, it is about the world's most ugly music, a repetition free song.
Interestingly, coffee doesn't actually give you en energy. To learn what it actually does, click the link and find out.
Biomimicry is a process, usually done by innovators and inventors, that takes aspects or methods of naturally occurring organisms and mimics them in human technology. For more information and examples of biomimicry go to asknature.org.
Noam Chomsky on education indoctrination.
The combination of squatting and skinny jeans is a risky one, but not just for the worry of tearing the pants. As it turns out, skinny jeans can cause permanent nerve and muscle damage.
So You’re Going to Eat a Brain…
The human brain is an extremely nutrient-dense food, but not an easy one to plan a balanced diet around. Let’s say you have a smallish but healthy adult male. Their brain is probably around 1300 cubic centimeters (and with its density, its volume is directly proportional to its weight of 1300 grams).
Like most of the body, the brain is primarily water. In a healthy adult, it’s about 77% H2O.
Of the remaining 23%, the nutrient breakdown is as follows:
11% fat = 143 gm fat - 143gm * 9 Cal/gm = 1287 Cal 8% protein = 104 gm protein - 104 * 4 Cal/gm = 416 Cal 1% carbohydrate = 13 gm carbohydrates - 13 * 4 = 52 Cal
In total, a human brain contains between 1700 and 2100 calories, depending upon if the dura mater is consumed (dura not included in above calculations).
Because of the density of neurons in the human brain, we have a lower percentage of our brain dedicated to myelination, which is extremely cholesterol-rich.
However, while we have a lower percentage of cholesterol per volume than beef or pork brain, it’s still extremely high. One human brain would yield approximately 38,000 mg of cholesterol, or about 12,600% your recommended daily intake.
The brain is also a source of incurable diseases caused by prions, known as the transmissible spongiform encephalopathies. Prions are extremely heat-resistant so even if you cook your brains, that’s no guarantee that you won’t contract a condition such as Creutzfeldt–Jakob disease or kuru. These conditions are extremely rare, however, so I’d be more concerned about your cholesterol intake (and maybe the fact that you’re eating a human brain), first.
Image: Traité de phrénologie humaine et comparée. Joseph Vimont, 1832-1835.
Brain Facts and Figures
The Brain That Heals Itself: Neuroplasticity and Promise for Addiction Treatment
A woman sits at her piano, practicing a five-finger exercise. For two hours a day, she practices the exercise over and over, her finger movements growing sharper, more precise and fluid. Another woman sits in a chair, hands still, and imagines playing the same five-finger exercise. For two hours a day, she practices in her mind and she can visualize herself getting faster, more melodic, more purposeful. After five days, the motor cortex corresponding to these finger movements has flourished in the brain of the woman playing the piano, proving that behaviors physically alter the brain. But what is more fascinating is that these neural changes also occurred in the woman who was simply imagining playing the piano. In other words, we can change the structure of our brains simply by thinking.
The human brain has historically been a mysterious thing, a slippery and elusive being. For years it was thought that the brain completed its development early and then sat fixed, immutable, and vulnerable to damage from which it could not heal. Then an opera singer with MS regains his soaring voice. A blind man teaches himself to see. A man with Parkinson’s cures his symptoms by walking. And research begins to teach us that the brain is not static, but a flexible organ with the ability to form itself to behavior, reorganize itself to accommodate change, and compensate for damage. The brain is inventive, responsive, and, through careful modulation, full of promise.
The Changing Brain
As you think new thoughts, practice new skills, and participate in new behaviors, neural pathways form. As these thoughts and behaviors are repeated, the pathways strengthen, habits emerge, and the brain is rewired to invite the use of these roads. Like a well-worn forest trail we walk every day, we know them by feel, the memory of their twists is imprinted on us, their turns sewn into our consciousness. Meanwhile, pathways we no longer use weaken, become impassable and hostile in comparison to their more popular, open alternatives. This plastic nature of the brain – or neuroplasticity – opens up a world of potential for people to optimize their minds through improved cognitive function, memory, language skills, and guard against age-related decline. It also gives us a new way of conceptualizing addiction, and the promise of treatment possibilities to guide users to recovery using the innate resources of their own brains.
Addiction As A Brain Disorder
For years, debate has raged between schools of thought that frame addiction as a choice versus addiction as a disease. Through an understanding of the brain as an adaptable organ, we can reach a more sophisticated model, describing addiction as a reorientation of the brain that creates new neural pathways and perpetuates addictive behavior. Rather than arbitrary choice, the addict’s brain has remapped itself to make feeding addiction the most natural course of action.
When a person indulges in addictive behavior, their brain floods with dopamine. Dopamine release is not only highly rewarding, it also increases the ability to learn, and tells the brain, “Remember how this happened so you can feel this way again.” As the behavior is performed again and again, the level of dopamine release decreases, and new extremes must be reached for the same effect. Eventually, tolerance may build to such a point that the addictive behavior no longer provides pleasure at all–merely avoidance of withdrawal. But even in the face of diminished rewards, the neural pathways beg for the repetition of the behavior; the brain is now built for addiction.
The Power of Neuroplasticity
While neuroplasticity may be a culprit in the creation of addiction, it also holds the key to recovery. By harnessing the moldability of the brain and abandoning the neural connections fed by addictive behaviors, new pathways can be formed via the development of healthy behaviors and thought processes. Through carefully created treatment plans, people suffering from addiction can be released from its grip to move toward stability, insight, and self-awareness.
Meditation in particular is proven to engage the brain and expand its potential. Applying the principles of meditation to treatment addiction, Mindfulness-Based Relapse Prevention (MBRP) modulates brain activity to create new neural responses to distress and cravings. Through mindful meditation, people with addiction can learn to tolerate discomfort and stressful situations with decreased reactivity, allowing them to be in control of their actions and behave in thoughtful, deliberate ways. Even more significantly, MBRP allows addicts to experience distress without increased cravings, interrupting self-destructive impulses and replacing them with healthy coping mechanisms.
Toward Recovery
By embracing the potential of neuroplasticity and integrating neural modulation into therapeutic practice, addiction treatment programs can harness the healing powers of the brain and relieve suffering. This nuanced understanding of the brain offers hope for the millions of people suffering from addiction as we forge new paths to lasting sobriety.
Put together by Alta Mira, an addiction treatment center in Los Angeles, California.
Have you ever heard of a lazer harp? Do you want to change that?
See a pianist play the amazing, the fantastic henri's blues.
A bucket pounding, stick twirling, energy giving street performer and his work.
A group in the UK has created an amazing alternative to a remote control: a headset that uses your brainwaves.
This woman had an amazing near death experience, and understood what was happening at every step of the way.
“Photomicrograph of the microscopic blood vessels that carry nutrients to neurons in the brain, obtained with a scanning electron microscope.
This sample, from human cerebral cortex, shows a large blood vessel at the surface of the brain (top), which sends down thin, densely branched capillaries to deliver blood throughout the entire cortex” Image credit: Alfonso Rodríguez-Baeza, Marisa Ortega-Sánchez
Text: Daily Anatomy
Virus hiding in our genome protects early human embryos
We may owe our survival and complexity to a stowaway virus that springs to life in the very first cells of human embryos. Not only does the virus seem to protect embryos from other viruses, but it also assists genes when the groundwork is under way for the body plan of a new human.
The finding backs the controversial idea that viruses which took up residence in our DNA millions of years ago may be playing the role of puppet master, quietly influencing our existence and evolution. “We are creatures controlled by viruses,” says Luis Villarreal of the University of California at Irvine.
Retroviruses insert their genetic material into the cells of their human or animal host. At first, this causes disease and death. Over time, however, the host evolves resistance to the virus, allowing any DNA that has embedded itself into sperm or egg cells to be passed down to the next generation. The virus is now known as an endogenous retrovirus or ERV – a permanent fixture in the host’s genome.
Silent protector
About 9 per cent of our genome is thought to have come about this way. Until recently, these viral relics were largely dismissed as inactive “junk” that ceased to have any impact on their host many thousands of years ago. The discovery that HERVK, the most recent ERV to make itself at home in our DNA – probably around 200,000 years ago – is active in human embryos challenges that notion.
Joanna Wysocka and her colleagues at Stanford University in California made the unexpected find while they were analysing gene activity in 3-day-old human embryos, which are bundles of eight cells. Besides DNA from the parents, they found genetic material from HERVK. “The cells were full of viral protein products, some of which had assembled to form viral-like particles,” says Wysocka.
Further experiments revealed that the virus appears to produce a protein that prevents other viruses penetrating the embryo, suggesting it protects the embryo from dangerous circulating viruses, such as influenza. It also seems to play a crucial role in the genetic activity of the embryonic cells, helping to genetic instructions to the cellular protein factories.
Biological dark matter
Tantalisingly, the stowaway virus might even provide clues to what makes us different from chimpanzees and other non-human primates. Some researchers have previously argued that ERVs may play a key role in how species diverge from each other, by activating different body plans and gene networks that may give one individual an edge over other members of the species.
Wysocka’s work backs up this idea, says Patrick Forterre of the Pasteur Institute in Paris. “It shows that the protein products of a relatively ‘recent’ retrovirus integration are present very early on in the embryo, and could be involved in some critical developmental programmes.” The observation that ERVs could also protect the embryo against infection also makes a lot of sense, he says Forterre. “It’s as if retroviruses are competing with each other via their human host.”
Despite being ubiquitous, viruses are often called the dark matter of biology as their influence frequently goes unnoticed. If DNA is a jungle, then the viruses are the animals and plants that live and adapt within it, says Villarreal, who in 2001 showed that the presence of a viral gene is essential for the formation of the human placenta. “DNA is the habitat, and the viruses are the inhabitants,” he says. The most influential viruses are those, like HERVK, that have inserted themselves permanently into our DNA and can be passed on to the next generation.
These viruses have the genetic tools to refashion the hosts’ genes, influencing which are active and when, and with which other genes they interact. This means they have the ability to reshape the physical characteristics of their hosts, says Villarreal. “It’s a massive dynamic pool of colonising genomes.”
Journal reference: Nature, DOI: 10.1038/nature14308