Coffee
When is consumed in moderation, coffee provides energy and helps to improve concentration. It stimulates short-term memory and can help solve the problem, because it increases alertness. Coffee has these properties because of the presence of caffeine, which is also in soft drinks, chocolate and energy drinks. Two to three cups of coffee a day can help you to concentrate better, but if you overdo, you risk becoming nervous.
Nuts and seeds
Nuts and seeds are a good source of vitamin E, and vitamin E are associated with preservation of memory during aging. Nuts contain protein, fiber and good fats. Almonds are the best choice, but you can eat and hazelnuts and walnuts. Select the pumpkin seeds for snacks, because they are a natural source of antioxidants and omega-3 fatty acids. But sunflower seeds are neglected because ample vitamin.
Avocado
Avocados surprise at every list of healthy foods. Good protein and fat it contains improves blood circulation, which is essential for the proper functioning of the brain. However, care should be taken with avocado consumption, because a high calorific food.