A monitoring device (20) and method (200) for monitoring the health of a user is disclosed herein. The monitoring device (20) preferably includes eyewear (25) with an optical sensor (30), a digital storage and processing device (35) with a display member (40) and a control component (43), and a connection cable (45). The monitoring device (20) preferably displays the following information about the user: pulse rate; calories expended by the user of a pre-set time period; target zones of activity; time; and distance traveled.