Foods to help with brain function and focus. Ginseng, Fish, Berries, or Caffeine? Listen to the buzz about foods and dietary supplements, and you’ll believe they can do everything from sharpen focus to enhance memory, attention span, and brain function. But do they really work? There’s no denying that as we age, our body ages right along with us. The good news is that you can improve your chances of maintaining a healthy brain if you add “smart” foods and drinks to your diet. 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 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.
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