Omega-3: Your Brain's Best Friend
Omega-3's are a fatty acid. This is good fat that you find in flax oil, fish oil, chia seeds, walnuts, supplements, etc. This oil helps protect the synapses in the brain. Remember how sugar caused the receptors that help you to think properly and remember things to be impaired.
Well, omega-3's are the ones building those receptors up and keeping them functioning in good condition. Think of sugar as the enemy army coming to tear down your brain's internal communication system and omega-3's are your army stage to defend those lines of communication.
Making omega-3 a part of your diet will help your brain to keep healthy and strong. Of course, limiting the amount of sugar that you enjoy also will make a significant impact as well. Always be aware of how much sugar you are consuming. Even foods you wouldn't expect to contain sugar, often have higher levels than you would expect.
The same study said "the average American consumes roughly 47 pounds of cane sugar and 35 pounds of high-fructose corn syrup per year". That's a lot of sugar! Unfortunately, much of that sugar may even have been consumed without realizing. Check your label and, when possible, make your own food so you can control the amount of sugar you are taking in.