The brain has to do the right thing with thousands of thoughts every day. So I want real food for him. Here's a list of some foods you can use to keep your brain healthy and active. 1. Dark Chocolate Eating a piece of dark chocolate every day increases the performance of the brain. Eating small amounts of dark chocolate can help reduce the risk of stroke and heart attack , scientists say. 2. Walnuts Walnuts contain much more omega three fatty acids than other nuts. It protects the brain from any disease. 3. Tomatoes, readily available, help boost brain power , as they are rich in antioxidants , which help prevent damage to brain cells. Tomatoes also help to enhance memory. 4. Salmon and marine fish make up 60 percent of the human brain's fat. So it needs fatty acids to keep it active. Marine fish such as salmon , tuna and other marine fish are very useful as brain food. This is because these foods contain fatty acids , which help protect against Alzheimer's disease. 5. Green tea enhances brain connectivity , as well as protects against Parkinson's and dementia , say researchers Three cups of green tea a day without sugar is very beneficial for your brain. . Blueberries There is no pair of blueberries to sharpen the intellect. It contains flavonoids. It also helps to enhance memory. It also protects against damage to brain cells. Blueberries also protect against Parkinson 's Alzheimer's. . Spinach Spinach contains a lot of potassium , which increases the connective power of the brain and improves memory. It also contains plenty of antioxidants , including magnesium , vitamin E and vitamin K , which protect people from dementia or dementia.