1, long-term satiety: modern nutrition research found that after eating too much, the brain is called “fibroblast growth factor” substances will increase significantly. These fibroblast growth factors can make capillary endothelial cells and fat increase, and promote the occurrence of atherosclerosis. If long-term satiety, it will inevitably lead to cerebral atherosclerosis, premature brain aging and mental retardation and other phenomena. 2, despise breakfast: do not eat breakfast so that the person’s blood sugar is lower than the normal supply, the nutritional supply to the brain is insufficient, and over time, harmful to the brain. In addition, the quality of breakfast and intellectual development is also closely linked. According to research, children who generally eat a high-protein breakfast in the classroom of the best thinking generally relatively longer, while children who eat vegetarian mood and energy decline relatively quickly. 3, excessive sweets: children with excessive sweets tend to have a lower IQ. This is because the development of children’s brains can not be separated from the adequate protein and vitamins in food, and sweets will damage the appetite, reduce appetite, reduce the intake of high protein and multivitamin, resulting in malnutrition of the body, thus affecting brain development. 4, long-term smoking: German medical research shows that the perennial smoking brain tissue showing varying degrees of atrophy, susceptible to Alzheimer’s disease. Because long-term smoking can cause cerebral arteriosclerosis, over time, resulting in insufficient blood supply to the brain, nerve cell degeneration, followed by brain atrophy. 5, lack of sleep: the main way the brain to eliminate fatigue is sleep. Long-term sleep deprivation or poor quality, will only accelerate the decline of brain cells, smart people will also become confused. 6, less talk: the brain has a lobe area dedicated to language, often speak will also promote the development of the brain and exercise the brain function. Should say more informative, have a strong philosophical or logical words. Silent, unsmiling people all day long is not necessarily smart. 7, air pollution: the brain is the largest oxygen-consuming organ in the body, consuming an average of 500-600 liters of oxygen per minute. Only an adequate supply of oxygen to improve the efficiency of the brain. When using the brain, especially the need to pay attention to the air hygiene of the work environment. 8, sleeping with the head covered: with the quilt in the carbon dioxide concentration increases, oxygen concentration decreases, inhaling humid air for a long time, the brain is extremely harmful. 9, unwilling to use the brain: thinking is the best way to exercise the brain. Only more brains, think diligently, people will become smart. Conversely, unwillingness to use the brain can only accelerate the degeneration of the brain, smart people will become stupid. 10, sick brain: in ill health or suffering from disease, reluctantly adhere to study or work, not only inefficient, and easy to cause brain damage.