February is American Heart Month, a time to raise awareness about heart health and what we can do to prevent heart disease. Dr. Jennifer Mieres is one of the leading experts and patient advocates of heart health in women. She joins CBS News medical contributor and cardiologist Dr. Tara Narula to discuss why heart disease is the leading cause of death for women — more deadly than all forms of cancer combined. Dr. Mieres, the senior vice president of the Center for Equity of Care at Northwell Health, explains why African American and Hispanic women are at even greater risk for heart disease. She shares the spectrum of symptoms women should watch for and ways to improve heart health.