The human body produces magnetic fields wherever ion exchange occurs. Detecting these pico-Tesla level magnetic fields enables non-invasive monitoring of brain and heart health, but medical-grade sensing methods require large equipment with high power consumption. This talk will detail a solution using microelectromechanical systems (MEMS) composed of a magnetostrictive and piezoelectric material. After an introduction to the sensor design and operation, we will discuss the design process, electrical and magnetic characterization, and results.