MRI is a big, donut-shaped machine that doctors use to take pictures of patients’ insides. Not many people know that MRI is incredibly flexible. It is like a sci-fi camera that can look under your skin and use different settings to map brain activity, brain microstructure, iron levels, and blood flow just to name a few. In this talk, I will illustrate how this is possible, showcase a variety of these brain maps, and explain how they can help tackle Alzheimer’s disease in an ongoing UK-wide clinical study.