Conventional wisdom — and that weird librarian from middle school — say reading books is the best way to become smarter. But new research shows that pumping iron can also bring about significant cognitive gains, and the more you exercise, the smarter you become. Check out my interview in MEL to learn how to increase brain-derived neurotrophic factor (BDNF) for increased neuronal plasticity through a mix of HIIT and long duration training. Gotta get those brains, bro!