Imagine the sensory overload new arrivals experience during their first days in New York City. Now, imagine that same overload for those checking a loved one into a hospital for urgent cardiac care. Michelle Javian, 31, witnessed the dizzying effects firsthand when her father was in New York-Presbyterian for a 2008 heart transplant. “I met so many families from all over the world who had no place to stay, no place to shower, and weren’t eating well,” she recalls, noting that her own family was lucky enough to have a Manhattan apartment during her father’s hospital stay. After consulting with doctors on how she might give back, Ms. Javian co-founded Harboring Hearts, a nonprofit that provides cardiac patients and their families with housing, meals, transportation and emotional support.