CU-Boulder faculty and staff are invited to a "mini medical school" on how the heart works Feb. 12 at noon in room 235 of the University Memorial Center. The talk by Dr. Lonny Granston titled "Cardiology for Regular Folks" is part of the Wellness Wednesday series of brown-bag lunches featuring presentations on health, wellness and fitness. Granston, who practices family medicine at the University Medical Group Practice in Boulder, will explain "what EKGs, blood pressure readings and other tests really tell us."