background preloader

How Sleep Deprivation Decays the Mind and Body - Seth Maxon

How Sleep Deprivation Decays the Mind and Body - Seth Maxon
I awoke in a bed for the first time in days. My joints ached and my eyelids, which had been open for so long, now lay heavy as old hinges above my cheekbones. I wore two pieces of clothing: an assless gown and a plastic bracelet. I remembered the hallway I had been wheeled down, and the doctor’s office where I told the psychiatrist he was the devil, but not this room. I forced myself up and stumbled, grabbing the chair and the bathroom doorknob for balance. I made it to the toilet, then threw water on my face at the sink, staring into the mirror in the little lavatory. In those first moments, I remembered the basics about what had landed me in the hospital: Some pseudo-philosophical ranting and flailing brought on by a poorly executed experiment to see how long I could last without sleep. I was 18, in Italy, on a school-sponsored trip with that pompously misnamed group for American teens who earn As and Bs, the National Honor Society. Why? Dr. “You know what people might be doing that?”

http://www.theatlantic.com/health/archive/2013/12/how-sleep-deprivation-decays-the-mind-and-body/282395/

Related:  NeuroscienceBUY MODAFINIL ONLINEBrain,Mind,PsychologySleep HygieneHealth: Sleep

Neuroscience explains why ISIS attracts psychopaths AFP/Welayat Homs/AFP - An Austrian Islamic State (IS) group fighter, identified as Mohamed Mahmoud (R) (aka Abu Usama al-Gharib), and his German comrade, named in the video as Abu Omar al-Alamani, speaking in German prior to executing two non-identified men The militant Islamist group known as ISIS is more than just an organization with an ideology that is different from our own. This is a group that has regularly carried out or inspired attacks that have massacred large numbers of innocent civilians in places like France, Turkey, Mali, and now, the United States. Additionally, ISIS has released a number of videos that clearly show members beheading people in the most gruesome and barbaric manner thinkable. As such, it has become increasingly apparent that we are dealing with a group of homicidal and suicidal maniacs with a severely warped moral and ethical code. Our brains are essentially biological computers.

Brain cancer may grow faster the more you think In a newly published study, medical researchers led by neurologist Michelle Monje at Stanford report than many aggressive forms of brain cancer appear to worsen the more you think. Not just about the cancer, but anything. The more brain activity you have, the faster the cancer cells divide. This discovery has the potential to lead to the creation of new treatments for previously terminal diseases. Monje and her colleagues came to this realization while studying diffuse intrinsic pontine glioma (DIPG), a rare cancer found in children that is untreatable by any current means. Sleep spindles in midday naps enhance learning in preschool children Author Affiliations Edited by Terrence J. Sejnowski, Salk Institute for Biological Studies, La Jolla, CA, and approved August 19, 2013 (received for review April 5, 2013) Significance Lacking scientific understanding of the function of naps in early childhood, policy makers may curtail preschool classroom nap opportunities due to increasing curriculum demands.

Best and Worst of Neuroscience and Neurology – November 2015 Maybe this is just a reflection of the annual funding cycle, but it is common to see a lot of high quality publications towards the end of year. And as the end of 2015 is approaching, choosing the most interesting articles for this review becomes a more challenging task. Here, I’m presenting only few of the studies that are worth talking about. As usual, the choice of article for inclusion mostly reflects my personal opinion about their significance. This month, scientific community marked the birthdays of two scientists: Charles Scott Sherrington and Edgar Adrian. Do you have a male or female brain? The simple test that investigates your 'gender personality'... and the answer will surprise you A person's brain often reflects their gender. However their hands can also indicate if their brain is more female or maleWhy are some skills or characteristics considered male or female-specific?Documentary examines if gender-specific traits are due to biology (occuring from birth) or develop as a result of environmentThe film examines different theories and studies about gender and the brain Study says fingers can indicate how much testosterone is in a person's body Is your brain male or female? Documentary premieres on SBS One on Monday at 7.30pm By Dr Michael Mosley Published: 15:14 GMT, 26 April 2015 | Updated: 02:41 GMT, 27 April 2015

Alternative Sleep Cycles: 7-10 Hours Are Not Needed The average person requires 7-10 hours of sleep per night according to the National Sleep Foundation. But is it possible that using different sleep cycles, where the benefits of sleep are still achieved, we can sleep less? Much less? Most of us are familiar with what is called a monophasic sleep cycle. Revolutionary Neuroscience Technique Slated for Human Clinical Trials A technique called optogenetics has transformed neuroscience during the past 10 years by allowing researchers to turn specific neurons on and off in experimental animals. By flipping these neural switches, it has provided clues about which brain pathways are involved in diseases like depression and obsessive-compulsive disorder. “Optogenetics is not just a flash in the pan,” says neuroscientist Robert Gereau of Washington University in Saint Louis.

New insight into how brain makes memories Every time you make a memory, somewhere in your brain a tiny filament reaches out from one neuron and forms an electrochemical connection to a neighboring neuron. A team of biologists at Vanderbilt University, headed by Associate Professor of Biological Sciences Donna Webb, studies how these connections are formed at the molecular and cellular level. “Alterations in dendritic spines are associated with many neurological and developmental disorders, such as autism, Alzheimer’s disease and Down Syndrome,” said Webb. “However, the formation and maintenance of spines is a very complex process that we are just beginning to understand.”The filaments that make these new connections are called dendritic spines and, in a series of experiments described in the April 17 issue of the Journal of Biological Chemistry, the researchers report that a specific signaling protein, Asef2, a member of a family of proteins that regulate cell migration and adhesion, plays a critical role in spine formation.

Related: