Fatty acids aren’t the first thing you may think of when your memory starts getting a bit hazy, but the anti-inflammatory properties of omega-3 fatty acids, like those found within fish oil, can make a big difference in your cognitive function. These particular fatty acids are also good for preventing brain lesions and reducing oxidative stress, which can cause plaque build-up in the brain. Fish oil supplements are readily available in most health food stores and grocers, and also has a number of other health benefits for your heart and general inflammatory conditions throughout the body.