So the first question was, what is the brain made of in terms of its lipids? And we did a study of 32 mammalian species to examine the lipids of the brain. And what it turned out was, they were all the same. There was no difference from one to the other. What was different was the extent to which the brain had evolved. We had big brains and small brains, and they were all the same. But the size of the brain, which is what had mattered. That meant that the chemistry of the brain was a really determinant of brain size and brain function. And that led us into the question of identifying docosahexaenoic acid as a very principal component of the brain, as well as arachidonic acid. And that these two fatty acids between them were singularly important for brain growth and evolution. And that's what set us off on the story of omega-3, because the arachidonic acid was available from the land food base, but docosahexaenoic acid was not. The source of a docosahexaenoic acid was, or the omega-3, if you like to call it that, was the marine food web. And of course, the singularly important issue here was that the brain evolved in the sea. It evolved in the sea 500 million years ago. What nourished that evolution? Well, the only thing that was available was the marine food web. And docosahexaenoic acid was singularly important in the signaling systems, not only of the brain, but also of the eye. Gene Anderson produced evidence of that about the same time, working at the Cullen Eye Research Institute in Houston, Texas.