At the last Bay Area Quantified Self Show&Tell, Seth Roberts presented new findings on his “Arithmetic and Butter” experiment. Seth does arithmetic problems every morning as a measure of his brain function. He found that eating half a stick of butter every day shaved 30 milliseconds off his time to solve the problems. Does butter improve brain function, or is Seth endangering his life, as a cardiologist in the audience worried? Catch the excitement in the video below.