HART — Michigan State University Extension Office will present Cooking Matters, a free nutrition/healthy cooking demonstrations Tuesdays and Thursdays from August 18 through September 3 from 5:30 to 7:30 p.m. at Rennhack Orchards Market, 3731 W. Polk Road. The programs are for men and women who want to cook healthy on a limited budget and will be presented by Stephanie Ostrenga…