The former L'Oréal Paris model found success in a decade-long string of '90s movies, including Green Card, Groundhog Day and Four Weddings and a Funeral. Still rocking the same stunning looks, slim figure and lush locks, MacDowell (seen at right in July 2013) now stars on the Hallmark Channel drama Cedar Cove. The model mama credits her agelessness to staying stress-free. "And even if I am really worried about something, I can go to a yoga class and release it," she tells PEOPLE. "So I feel the most gorgeous after I've taken a yoga class or after riding horses."