Brain Food.

Caffeine Can Make You More Alert

There's no magic bullet to boost IQ or make you smarter -- but certain substances, like caffeine, can energize and help you focus and 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 metabolizes from the sugars and carbohydrates you eat. That's why a glass of something sweet to drink can offer a short-term boost to memory, thinking processes, and mental ability. Consume too much, however, and memory can be impaired -- along with the rest of you. Go easy on the sugar so it can enhance memory, without packing on pounds.

Fish Really is Brain Food

A protein source associated with a great brain boost is fish -- rich in omega 3 fatty acids, essential for brain function and development. These healthy fats have amazing brain power: higher dietary omega 3 fatty acids are linked to lower dementia and stroke risks; slower mental decline; and may play a vital role in enhancing memory, especially as we get older. For brain and heart health, eat two servings of fish weekly.

Add a Daily Dose of Nuts, Chocolate

Nuts and seeds are good sources of the antioxidant vitamin E, which is associated with less cognitive decline as you age. Dark chocolate also has powerful antioxidant properties, and contains natural stimulants like caffeine, which can enhance focus and concentration. Enjoy up to an ounce a day of nuts and dark chocolate to provide all the benefits you need without excess calories, fat, or sugar.

Get Ready for a Big Day

Want to power up your ability to concentrate? Start with a meal of 100% fruit juice, a whole grain bagel with salmon, and a cup of coffee. In addition to eating a well-balanced meal, experts also advise:

• Get a good night's sleep.
• Exercise to help sharpen thinking.
• Meditate to clear thinking and relax.