Fats, she explains, are not the nemesis many diets have made them out to be. We need fats in our diet because our brain is made up of fat. "It's made up of chemicals that talk to each other and that are lubricated by the fat in order to communicate across the synapses, and contribute to our ability to focus, to apply attention and to lift our mood. Indeed, there is some very good research going on in the military looking at the role of Omega 3 fatty acids for not only treatment of depression and anxiety, but also for suicide prevention."