The American Heart Association is celebrating National Wear Red Day on Feb. 3 to raise awareness of the health complications that heart disease can bring to women.

Since 1963, February has been designated American Heart Month. While technology has advanced dramatically in the past 50 years, heart disease is still a major threat to men and women, especially in mid-life.  However, the American Heart Association reports that studies show more women die of heart disease than all forms of cancer combined.

#NationalWearRedDay has started trending on Twitter, with users expressing their support for the cause:

ARE YOU READY? FEB 3rd is NATIONAL WEAR RED DAY! Spread the word to increase awareness of Heart Disease in, said Twitter user DrTanyaMD.

Ladies and Gentlemen Please wear red tomorrow- support National Wear Red Day - support for women's heart health-- The #1 killer of women!, wrote Twitter user BigSerenaVeeFan.

What is the number 1 killer of women? Heart Disease. Today is national wear red day, spread the awareness, wrote Twitter user JonDeRight.

A Facebook group also has been set up by the American Heart Association to raise awareness for National Wear Red Day.

We can stop our No. 1 killer together by sharing the truth, wrote the American Heart Association on its page. We can be the difference between life and death.

In order to help raise awareness for the day, the American Heart Association lists some local events throughout the country that encourages residents to spread awareness about heart disease.

Go Red For Women encourages awareness of the issue of women and heart disease, and also action to save more lives, said the Heart Association. The movement harnesses the energy, passion and power women have to band together and collectively wipe out heart disease.