In the scientific journal Nature, July 2006, a paralyzed man was reported, due to an accident involving spinal cord, implanted in his brain, 4 x 4 mm electric sensors and integrated by one hundred electrodes each. Such sensors are connected, in the style of the movie Matrix, to a system that manages a computer, a television, a robot. Through this apparatus, the man can move a cursor, open the email, direct the TV channel, move a robotic arm, open and close an artificial hand. These faculties were the result of a training accomplished in four days. Such implantable neurotic prostheses, which once looked like scientific fantasy, are now a reality. In addition to the scientific advance that this represents, it allows to warn the future of the integration of machine,
Alcoholism in youth
There is growing evidence that alcohol causes damage to the adolescent’s brain and that the earlier you start drinking, the more likely you are to become an alcoholic. A survey of 43,093 adults found that half of those who started drinking, before the age of 14, became dependent on alcohol throughout their lives. Studies have shown that alcohol damages the anterior part of the brain and the hippo campus, where memory is stored, which explains why young alcoholics have poor memory, learning, attention, spatial and cognitive skills. This also explains the “blackouts” of the previous night, that is, the suppression of immediate memory when you are drinking. Alcohol also damages the parts of the brain responsible for thinking and controlling impulses, which is why young people become aggressive. A high dose of alcohol prevents the creation of new nerve cells, which are born from the progenitor cells, which are involved in brain development. For the above reasons of euro biological order it should be avoided that young people consume high amounts of alcohol.
Evolution in genes
Recent research shows that we humans continue evolving They have discovered 700 regions of the human genome whose genes have modified natural selection over the last 5000 years. These genes include some that are responsible for the sense of taste, smell, digestion, bone structure, skin color and brain function. This finding adds substantial evidence to the fact that evolution has not stopped in the past but continues as a response to changes in the environment. This, moreover, explains the diversity of human populations even though their genes are similar. Each gene has the history of adaptive pressures and among these are those that modified the color of the skin. The first modern humans, who arrived in Europe 45,000 years ago,