What is the leading cause of death worldwide?

Cardiovascular Disease or CVD is reported to be a major reason for death among middle-aged individuals all over the world. It was estimated that cardiovascular disease caused an estimate of 17.7 million deaths out of 55 million deaths that occurred globally in 2017. Ischaemic heart dysfunction and stroke are the biggest killers globally as they both account for about 15.2 million deaths as of 2016.