You will need
- a healthy way of life.
Try to start to learn to focus on multiple information sources. For example, read a book and listen to the TV. This "skill" will not come immediately. First, possible headaches from stress and fatigue. But after a while you'll be free to do several things at once.
Try to solve as many logic problems, tests, improve IQ, crosswords, Sudoku, etc. Your brain needs to work. If the first does not work - do not worry and do not drop classes. View response the corner of his eye. So you remember, make inferences, and easily solve similar problems.
Expand your horizons. Read as many Newspapers, magazines, books; watch the news and listen to the radio. So you will always be aware of all the events and interesting to talk to others.
Learn to analyze. Don't let it be skillfully and at times silly, but the only way your brain will learn analysis. For example, imagine two completely different things: a cat and a brick. Ridiculous, but effective! Try to find between them as many as you can. Try to imagine all sorts of situations, developing creative thinking.
Doctors advise to eat small portions, but 4-5 times a day. So you keep the blood flow to the brain. If you have large portions 1-2 times a day, then the energy of the body will take to digest that food, and the brain will remain small.
No wonder they say that excessive Smoking is injurious to health. If you plan to increase the level of IQ - give up Smoking or reduce the number of cigarettes smoked. Tobacco smoke reduces oxygen consumption by the brain, and, consequently, deterioration of the brain.
During mental activity, try to breathe deeply through the nose. So your brain oxygenate, and immediately there will be new unexpected solutions!