Eating a diet rich in omega-3 fatty acids can also help ward off heart disease. Many fish, such as salmon, tuna, sardines, and herring, are rich sources of omega-3 fatty acids. Try to eat fish at least twice a week, suggests the AHA. Do you take care of your family? Goes without saying. Do you take care of your home? Of course. Do you take care of your heart? Probably not. It may not be at the top of most women’s to-do lists, but caring for your heart through a healthy diet and regular physical activity is the secret weapon to preventing heart disease.