BIG BRAIN IN HUMANS

According to the Life Science United States, that a large number of intractable mysteries in human body assembled in the cerebrum. Large brain is the organ that most confuse us, such as life and death, consciousness, sleep, etc., all of it was the mystery man who has been unable to solve until now.
1. Dreamland
If we ask the same question on 10 people, what causes us to dream? Maybe you'll get 10 answers are not the same. This is because the mystery that scientists can not be solved today. The first theory that through the stimulation of neural information between the molecules of the brain of the exercise on the brain during a dream in progress. Another theory is people dream of tasks and feelings that could not be considered again, in such a process could help us strengthen memories and thoughts. Generally, scientists agree with the notion that "dreams can happen during a nap".
2. Sleep
In all of human life to spend at least ¼ time to sleep. Sleep is vital for the survival of creatures feeding, sleeping in a too long period can cause a lack of self sadarkann, hallucinations, and ultimately cause death.
Two conditions during the period of sleep lasts a full bed (activity slowed eyeball), such as the brain metabolic activity slows, and the nap (when such can dream), such as brain activity is very dynamic. According to the scientists that sleep in the fully able to make our bodies a rest, maintain stamina, like sleeping animals. Sleeping in the moment can help create something memorable, however, this notion has not been proven.
3. Hallucinations
It is estimated that approximately 80% of amputees had experienced feelings of torment, stress, desire, warmth and feelings of others. People who experience such phenomena, always felt the cut limbs still exist. An explanation of the opinion, the nerve is cut to form a new relationship with the spinal cord, where the limb is less as if it still exists, continue to send signals to the cerebrum. Alternatively, the large brain is a "wire" transmission, it controls that deform the body treats like a perfect body without disabilities, this means big brains retain control when the limbs are still intact and perfect
4. Laugh
Laughter is one of the most difficult human behaviors to understand. When we laugh, there are three parts of our brains to be dynamic ie: the area in the power of mind, he makes you get the joke (laughs); the movement of pushing your muscles to move; the emotions (feelings) make us gave him a smile. Pioneering researcher John Morryer find humor, laughter is a very interesting reaction to the story that violates the habit. And understanding others regard laughter as a channel to transmit information "interesting (funny) 'to others. Thus seems clear: laughter makes us feel better.
5. Priori (innate) and after birth
Does our mind and nature are controlled by genes or environment-related growth after birth, this issue is always debated over the years. Fortunately, scientists are working to try to collect a large amount of convincing evidence, to answer the question above. Lack of research skills of individual genes, showing that we are totally unable to control over a large number of human characteristics. However, some studies found that in many ways, the pressures facing the same generation or education received, will cause a deep impact on the how, and what we will do.