Saturday, August 25, 2007

The human brain of the 10 mysteries

1. Dream
If you asked 10 people with a problem -- what caused a dream, you might get 10 different answers. This is because scientists do not yet have the answer to this riddle open. One possibility is : dream process by stimulating the brain elements of information between nerve to the brain for bonding exercise. Another theory is that people dreamed of the day not take into account the mandate and emotion, this process can help to consolidate the ideological and memory. Generally, scientists agree dreams will be sleeping in a shallow view when they said that this period of Rem sleep.
2. Sleep
Flies to sleep, sleeping tiger also, we seem to never sleep enough. The discussion here is the topic of sleep, a person's whole life to spend a quarter of the time sleeping. However, the fundamental reason for sleep still like a fanciful dream as people puzzled. But scientists also do understand sleep one important aspect : sleeping on the survival of mammals. Chronic insomnia can lead to a trance, hallucinations, and ultimately causing death. Sleep two states -- deep sleep period (eyeball activity slowed), when brain metabolism is slowing down. Shallow sleep period (this time dreaming), the active period of brain activity. Some scientists believe that deep sleep can sleep physical rest, preserving energy, like animals, like hibernating. Sleep shallow sleep contribute to the memory of things together. But this view has not been confirmed, shallow sleep period is not always a dream and memory.
3. Illusion
An estimated 80% of the amputees who have experienced from the amputation, including warmth, anxiety, pressure and pain as feeling experienced this phenomenon (that we know of "illusion body"), always felt was amputated limb still exists. One explanation that the amputation and spinal cord nerve area to re-establish contact, as if the lack of physical remains the same, to continue to send signals to the brain. Another possibility is that the brain is a transmission "hard line" It's like the perfect treat physical manipulation of the same residue -- which means that the brain are still keeping physically sound manipulation of the blueprint.
4. Mission control
The brain's hypothalamus hypothalamic suprachiasmatic nucleus (suprachiasmatic nucleus), or biological clock (biologicalclock) physical with the 24-hour rhythm of functioning. Circadian rhythms of a most obvious result is : sleep-awake cycles, but also the biological clock affects digestion, body temperature, blood pressure and hormone production. The researchers found that by increasing Bright regulate melatonin circadian clock can be adjusted forward or backward. Recently the debate people, whether through add melatonin to help prevent aircraft time difference -- drowsiness and aircraft through the area when the headache flu.
5. Memory channels
Life is difficult to forget some experience, as your Kiss. But for one to grasp how these private scenes? Scientists are using brain-imaging technology to create a clear memory and storage memory mechanical reflect. They found that the brain's gray matter within the hippocampus as physical memory storage box function. However, the storage capacity in the region does not distinguish between strong. The same region of the brain stimulated, it can have a true and false memories. To true memories from false memories separating it, the researchers suggested that with the background to enhance the memories of memory, if something really happened, it is very difficult through this method to strengthen its human brain memory.
6. Please brain
Laughter is the most difficult to understand the human acts. Scientists have discovered that when people laugh delightedly, the brain within three of the active site changes, which are : the jurisdiction of regional thinking, it makes you jokes; Regional campaign to promote your muscle movement; Emotional regional raises "frivolous" emotional, so smiles. But why would someone foolish brothers laugh at the joke, and some other people will see the film when giggle terrorist laughing. Dihanmolier of the College of William and Mary humor research pioneer, he found that laughter is in violation of the incompatibility between conventional story is a very interesting reflection. Another area of humorous views put to other laugh as one such behavior is "interesting" signal of a channel. Thus we can see : laughter make us feel better.
7. Born and nutrition
Our thoughts and personality is whether genes or environment control, has long debate. Scientists established a convincing evidence system, and to prove that it could be controlled by one or two fronts simultaneously control. Individual genetic study shows that the capacity for many human characteristics can not control, however, in many areas, the face of peer pressure or education will accept what we are and who we will do what have far-reaching implications.
8. Mystery death
Longevity is a Hollywood movie will happen. But why do we become old? When you were born as a toolbox full of energy, full of body resistance to disease and trauma repair mechanism, maybe you that the fact you will be able to resist joint stiffness and other diseases. However, as we have been getting older, the body's repair mechanism gradually lost its effectiveness. In fact, your body trauma and pressure to restore the capacity is increased with age has been dropping. The aging was divided into two types of theories : 1) Like other human characteristics, getting older may be part of human genetics, and in some ways beneficial to man. 2) to the most optimistic point of view, is not the intention of getting older, the human life cells constantly be damaged thereby cause of human aging. A large number of researchers believe that science will eventually postponed getting older, making the life expectancy is expected to reach at least double the duration of life.
9. Human frozen
Asked longevity may not be realistic. But as a human being frozen new areas of science will allow certain people to come back from the dead. Frozen human learning centers such as Arizona, "Diversity and Ethics in Public Life Extension Foundation" (Alcor Life ExtensionFoundation), and filled with liquid nitrogen temperature of minus 320 degrees Fahrenheit (78 absolute temperature) of the bone-chilling storage containers remains of the deceased. The idea is to die currently incurable diseases in the future find a cure after thawing can bring them back. Recently, the baseball legend Rafael to be stored in a Diversity and Ethics in the refrigerators. Like other body "popsicles" as Williams was placed upside down. This means placing the benefits is that if the containers leak, the brain still preserved in ice-cold liquid Lane. So far no one has been to preserve the body a new lease of life, it is because such people a new lease of life to the technology did not yet exist. For example, if no appropriate body temperature to thaw frozen human cells, resulting in impaired broken.
10. Consciousness
Wake up early, you may have already realized the sun has just risen and hear some birds in the branches jubilant calls, or even fresh air fluttering your cheek, you would have felt a sense of happiness. In other words, you are conscious. This is a complex topic from a troubled start to the scientific community. Recently, neuroscientists only as a sense of the reality of the subjects of study.