World Heart Day Observed On September 29:

Celebration of World Heart Day:

World Heart Day is celebrated on 29 September annually to draw people’s attention to heart illness and the range of associated health issues.

Aims to create awareness:

The day which is celebrated annually creates awareness of Cardiovascular Disease (CVD) including heart disease & stroke and highlights the preventive and control measures. 

It's Origin:

World Health Day was first founded in 1999 and observed on the last Sunday of September, i.e., on September 24, 2000 with the World Heart Federation (WHF) collaborating with the World Health Organization (WHO). World Heart Federation Headquarters in Geneva, Switzerland.