Go Red for Women’s #1 seller. The red dress as a national symbol for women and heart disease awareness. Only 55 percent of women realize heart disease is their No. 1 killer and less than half know what are considered healthy levels for cardiovascular risk factors like blood pressure and cholesterol. Wear and share your red dress pins to show your support of women affected by heart disease and help raise awareness so all women can take action to protect their health. Red Dress™ DHHS.