The Top 10 Deadliest Diseases

An estimated 55.4 million peopleTrusted Source passed away worldwide in 2019, and 74% of these deaths were because of noncommunicable diseases, or chronic conditions that progress slowly.

Perhaps even more surprising is that several of the deadliest diseases are partially preventable. Non-preventable factors include where a person lives, access to preventive care, and quality of healthcare, all of which factor into risk.

But there are several steps that everyone can take to lower their risk.

Read on to see 10 of the deadliest diseases worldwide.

1. Ischemic heart disease, or coronary artery disease

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The deadliest disease in the world is coronary artery disease (CAD).

Also called ischemic heart disease, CAD occursTrusted Source when the blood vessels that supply blood to the heart become narrowed. Untreated CAD can lead to chest pain, heart

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