Coffee
here's no magic bullet to boost IQ or make you smarter -- but certain substances, like caffeine, can energize you and help you concentrate.
Found in coffee, chocolate, energy drinks, and some medications, caffeine gives you that unmistakable wake-up buzz, though the effects are short-term. And more is often less: Overdo it on caffeine and it can make you jittery and uncomfortable.
Sugar Can Enhance Alertness
Sugar is your brain's preferred fuel source -- not table sugar, but glucose, which your body processes from the sugars and carbs you eat. That's why a glass of something sweet to drink can offer a short-term boost to memory, thinking, and mental ability.
Have too much, though, and memory can be impaired -- along with the rest of you. Go easy on the sugar so it can enhance memory without packing on the pounds.
Fish a Brain Food
A protein source linked to a great brain boost is fish -- rich in omega-3 fatty acids that are key for brain health. These healthy fats have amazing brain power: A diet with higher levels of them has been linked to lower dementia and stroke risks and slower mental decline; plus, they may play a vital role in enhancing memory, especially as we get older.
Nuts and Chocolate
Nuts and seeds are good sources of the antioxidant vitamin E, which has been linked in some studies to less cognitive decline as you age. Dark chocolate also has other powerful antioxidant properties, and it contains natural stimulants like caffeine, which can enhance focus.
Enjoy up to an ounce a day of nuts and dark chocolate to get all the benefits you need with a minimum of excess calories, fat, or sugar.
Avocados and Whole Grains
Every organ in the body depends on blood flow, especially the heart and brain. A diet high in whole grains and fruits like avocados can cut the risk of heart disease and lower bad cholesterol. This reduces your risk of plaque buildup and enhances blood flow, offering a simple, tasty way to fire up brain cells.
Whole grains, like popcorn and whole wheat, also contribute dietary fiber and vitamin E. Though avocados have fat, it's the good-for-you, monounsaturated fat that helps with healthy blood flow.
Blueberries
Research in animals shows that blueberries may help protect the brain from the damage caused by free radicals and may reduce the effects of age-related conditions such as Alzheimer's disease or dementia. Studies also show that diets rich in blueberries improved both the learning and muscle function of aging rats, making them mentally equal to much younger rats.
