Does Human Brain record all activities between the period "natural death" and "Clinical Death" ?
462937
I am not clear on what is meant by "natural" vs "clinical," but by the definitions in how they are used it sounds like it is talking about reversible vs. irreversible.\n\nReversible obviously means that a person can be medically revived in some capacity (e.g. consciousness) in order to report on what they experienced while in the NDE state. We have plenty of strong anecdotal evidence which clearly suggests that the human consciousness survives after the physical "shell" has ceased to function. \n\nIrrevisible of course means that the person could not be revived and that no such NDE report could be given in order to research that particular experience.\n\nIt is worth noting, however, that through over 30 years of careful study, every single non-biased (e.g. non-skeptical) look into NDEs has suggested an immortal soul at the core of human consciousness. And this is obviously the correct conclusion drawn when one looks at the literature from both sides and makes a neutral observation on where the data is pointing. In other words, there is far more research and anecdotes in favor of survival of consciousness than a Susan Blackmore-ish reductionist hypothesis.\n\nBut yes, to answer the question fully: people feel, think, see, smell and communicate even after their physical shells have ceased to function. Research the infamous "shoe on the roof" NDE whereby a woman clearly identified a shoe that she had seen on the roof of the hospital while floating above the hospital in an OBE state (she was taken to the hospital by ambulance unconscious). When a janitor went onto the roof, they found the shoe in the exact place on the roof and exactly as described by the patient.\n\nIt is also important to understand that Western science is extremely skeptical of NDEs as being definitive proof of an immortal existence. Yet Western science is cautious by design only; it makes no claim either way as to what is most correct. Science can only offer explanations based on observations and experiments. Does that make Western science correct in regards to NDEs? Short answer: heck no. Long answer: heck no.\n\nThe bottom line is that the data very strongly points towards a YES answer in regards to an immortal existence.
242659
I had what today is termed a "Near-Death Experience" or N.D.E. in 1972 when I was 12 years old before any of today's popular books and videos on the subject had been produced.  What I experienced had absolutely nothing in common with what I had been taught about death via my parents or religious upbringing.  I am now 46 and have been studying the phenomenon ever since.  I have many books, videos, and CDs about N.D.E.s in my library, so I consider myself very knowledgeable about the subject.  In addition, I am a college honors graduate, member of Outstanding College Students of America, a former College Bowl All Star (like the TV show "Jeopardy" except for American college students), and worked for many years as a professional journalist.  I was a pre-med major when I first entered college and am fairly well versed in modern science.  Bottom line:  N.D.E.s have been reported since the beginning of time (see Heironymous Bosch's paiting "Ascent of the Blessed" - circa 1450-1500.) and have absolutely nothing to do with the physical body or physical brain which Is Not the Seat of Consciousness as some would have you believe.  Many people who have experienced N.D.E.s had absolutely no brain activity, their hearts had stopped, their breathing had stopped, their eyes were closed, they were lying on a hospital gurney, and some even had their body temperatures quickly brought below freezing and all of their blood removed from their entire bodies; but these people were miraculously able to describe not only what the doctors did while they were clinically dead from a vantage point above their bodies but also were able to accurately describe conversations and events that took place in other parts of the hospital or even other parts of the world while they were "dead."  Unless you are very foolish indeed, the evidence suggests that consciousness survives physical death and can exist apart from the physical body.  What we now call N.D.E.s are reported by humans all over the world and tend to feature special characteristics.  Those characteristic include:  Separation from the physical body.  Floating above the physical body.  The appearance of a large tunnel of light.  Being sucked or drawn through the tunnel at what seems to be an incredibly high speed.  A unique and beautiful light at the end of the tunnel.  A doorway or portal at the end of the tunnel.  The appearance of deceased relatives, friends, or a recognizable religious figure who communicates telepathically and often escorts an N.D.E. recipient through the tunnel.  Usually in teens and adults, a three-dimensional, holographic-style "life review" in which the N.D.E. recipient not only sees, hears, and feels everything they've ever thought and done while physically alive, but also experiences what others felt and experienced as a result of their actions or inactions.  The N.D.E. recipient usually judges him or herself, but those whose consciences are very limited may have another spiritual being interpret for them.   Some have described this as having thier "life flash in front of them."  A being of light connected to the tunnel who communicates telepathically and may appear at the end of the tunnel near the door or portal.  Feelings of complete peace with no suffering or pain normally associated with the physical body.  Heightened intellectual awareness and sensitivity.  Sudden awareness of events, wisdom, or knowledge far beyond the normal scope of the person experiencing the N.D.E.  The ability to see or hear things beyond the normal scope of the human body.  The ability to travel over great distances at perhaps great speeds without any apparent aid through the exercise of conscious thought.  Not all N.D.E. recipients will report all of these characteristics or experiences, but they will report some of them because these core experiences are common to N.D.E.s.  Cultural or religious upbringing sometimes can in
200564
I don't think there is an *exact* count on the world's population, but the figure you might see is more of an estimate. It's likely to be a projection based on the average birth/death rates since there's no simple way to track each and every birth and death right when they happen. We'd all have to have microchips implanted in us that would shut off or send a signal when we died. However, that still wouldn't be a practical enough way to track all the infants who die in the process of childbirth - the important thing there is to make sure the babies are able to breathe on their own, not to get some chip implanted.
402674
not the field of science, totally different realms of magisteria.  Science will never have an answer.  Science can only say that near-death experiences can be explained by oxygen loss to the brain.
462909
There is plenty of repeatable evidence to show that all thought stops, and your body decomposes, upon death. There is absolutely no evidence to support something further happening, though many people have come to believe this unsupported claim, often being conditioned from a very young age.\n\nMost everyone fears death to some extent, including me. Very few people can say they truly don't care whether they are alive or dead. We can only hope that those who can say this truthfully are not in a position take others with them, whether they wield political clout, are terrorists, or are simple sociopaths.
252108
though i am offering nothing more than a personal opinion (worth about as much as any other layperson's)i'm going to row against the stream here and say that the rest of the brain is the part capable of things we learn to forget. i have seen young children just "feel" things that are beyond the grasp of older humans. maybe at one point in the past we all used instinct as we now use our senses. the structures are still there, and occasionally they still kick in, but mostly, we learn to rationalize things and think them through so we stop using that part. perhaps we were once able to sense that an earthquake was coming, or see and process two whole sets of visual information, or any number of other lost skills. perhaps in time the brain will evolve new uses for those areas, or even just use them as extra storage.\n\nor perhaps the brain needs the extra space. maybe it's a filler, so the useful parts can be in certain places. maybe padding, so the crucial parts are harder to damage. maybe it's just dissipation space, to keep the electic activity from being too concentrated and shorting our brain. i'm not an expert, but those are some ideas that come to mind.
1089146
I'll stay strictly biochemical, and not consider teliology or evolution, since the previous answerer addressed some of this.\nThough there is a hypothesis that aging and death occur because of damage, oxidative stress, etc, there is actually very little data to support this-in fact, the information we have explicitly argue against this.  Rats, mice, etc, live only 2-3 years, and show cellular degeneration, etc, very similar to that seen in aged humans, and yet are not exposed to greater levels of oxidative stress, or indeed extra stress of any kind, than humans.  If it truly were a matter of stress exclusively, the range of survival times would tend to be much broader than what we see- IN other words, some humans would die of old age at 5 or 6 years old, and some would live to 200-300 years old.  Stress, oxidation, poor diet can indeed influence the age at which we die, but they are not the primary determinants... it is apparent that this is a genetically controlled phenomenon, and that it occured soon after the rise of multi-cellular organisms, and that it varies greatly between species.  There have been some senescence genes found, that are specifically turned on that seem to guide cellular damage-however, it seems as if the greatest portion of the aging process, developmentally, is caused not be production of completely new proteins which end up killing us, but by variations of levels of proteins already expressed- For instance, there are significant decreases throughout life in a number of hormones, including androgens (in men) growth hormone, insulin-like growth factors, various neurotrophic factors, etc- and a concomittant rise in others, especially pro-inflammatory hormones, such as TNFa and certain interleukins.  All of this is genetically and developmentally regulated to a fairly specific time, and is slightly variable depending upon diet, exercise, etc- It is similar to the timing of puberty, which is primarily set as 11-16 years old, but is variable depending on environmental factors.  Outside of specific diseases, puberty will occur between approximately 8 and 18-19 in over 95% of the population, and in 100%  of the population (again, assuming no genetic defect or disease) will have occured by 21 or so.  human death, under the best of circumstances, probably will occur at around 85-90 years.  outside of specific non age related diseases, the range will be around 65-115, which is pretty tight.  The fact that we have *never* observed a mammal that lives forever, the genes that control senescence are likely very tightly connected to genetic programs necessary for survival-so that if an animal is missing the genetic program that controls death, it won't survive embryogenesis to begin with (otherwise, some percentage of mammals would live extremely long-which likely is extraordinarily damaging to the population of that species, and is thus dramatically regulated so it will never occur).\nIt is fairly likely that, within the next 100 years, this genetic control program will be dissected and understood, and then it will be a short time until it will regulatable clinically.  \nDeath is controlled by our genes, which are, in the end, simply biochemical control systems, and which are comprehensible with enough study- Then it becomes a societal decision as to how we should manipulate this.\n*edit* There is interesting observation with telomeres, and about 10 years ago, we thought this might be the hidden secret, but unfortunately, it doesn't appear to be so.  In many immortal, or long-living cells, telomeres play no role, and even in cells in which telomeres are artificially extended, there is still senescence (though it appears to occur somewhat later).  Telomeres are a clock that determines how many times a cell may divide before it enters a "cellular suicide" program, and thus it was thought this was critical to lengthening lifespan-however, most sensescence in mammals does not seem to occur because o
121784
Well, technically they can but usually only for about 6-8 minutes after death.  See, we define people as being dead when their heart stops beating, but for a few minutes if we can get their heart started again they'll be fine.  After about 8 minutes brain damage starts to occur, and I think somewhere between 15 and 30 minutes it becomes hopeless.  Those times will be a bit longer if the person is really cold though.
714247
The brain floats in a cushion of cerebral fluids and when a blow is strong enough to overcome the cushioning, the brain is diffusely affected; the whole brain is shocked. The brain can spend up to a week in hyper-metabolic activity, taking in many nutrients, before it recovers.
1171157
Yeah, old age.  But....  When we say that someone old has died of natural causes,  we probably don't know exactly why they died. Did they have a heart attack, a pneumonia leading to sepsis, a dysrrythmia etc...  Part if it is that we don't do as many autopsy  especially if there is no suspicion of foul-play.  Imagine trying to fill out a death certificate on a old person found at home dead.  I can honestly say that when I fill it out, at best its an an educated guess.
443099
no matter where in the brain a stroke occurs part of the brain dies.  With the cerebellum conducting much of the involuntary actions of the body a stroke could have no effect, but at the same time it could be as significnat as shutting down the heart or stopping the resporatory cycle if that part of the cerebellum dies during the stroke
305164
Insufficent Data.\n\nI have not die. If I did I dont remember
650605
At death, the human body is basically the same temperature that it was the instant before (when it was alive).  The body will then acclimate, just like any inanimate object, itself to the surrounding temperature over a period of time.
1064807
http://www.anaesthetist.com/icu/organs/heart/ecg/period/isitrbbb.htm
938163
Most human memories are in the form of images or sounds.. (your visual/audio perceptions..) \nwhereas a computer can be anything from data, visuals, audio or a file...  the computer is more organised and has 99.99999% chance of remembering every minute detail.. \n\ncompared to the human mind which only remembers certain events which have affected the person in their life. \n\nOn the contrary though.. it was the human mind which has developed the computer memory to be SO accurate.. therefore i believe our brain also has the capability to fully remember everything that happens... (for example.. if someone has a photographic memory... they remember everything they see...)
488433
The current medical consensus is that life does survive, for a period of roughly thirteen seconds, varying slightly depending on the victim's build, health and the immediate circumstances of the decapitation. The simple act of removing a head from a body is not what kills the brain, rather, it is the lack of oxygen and other important chemicals provided in the bloodstream. To quote Dr. Ron Wright "The 13 seconds is the amount of high energy phosphates that the cytochromes in the brain have to keep going without new oxygen and glucose" (Cited from urbanlegends.com, no longer extant). The precise post-execution lifespan will depend on how much oxygen, and other chemicals, were in the brain at the point of decapitation; however, eyes could certainly move and blink.\n\nThis solely technical survival forms only part of the answer; the second question is 'how long does the victim remain aware?' While the brain remains chemically alive, consciousness can cease immediately, especially if the victim is knocked unconscious by the force of the decapitating blow. Conversely, an individual could remain self-aware - able to see through their eyes and understand what has happened - for much of the thirteen-second period. There is no consistency in this answer, as the precise length of both actual, and practical, survival will vary depending on the victim. Of course, this applies to many forms of swift decapitation, and not just to the victims of la guillotine.
1155242
When you're comatosed or dead