Reason #2 – Boost Your Brain Power! Those buff lab rats might be smarter than we think. Various studies on mice and men have shown that cardiovascular exercise can create new brain cells (aka neurogenesis) and improve overall brain performance. We all want to be on the top of our game and be able to focus and do our best when we get to work! Working out helps you to be smart and more creative! I always work out first thing in the morning before I get to work typing up posts and what not – So mind is functioning on high!