 Currently, NCD kills 36 million people a year, a number that by some estimates is expected to rise by 17–24% within the next decade.Historically, many NCDs were associated with economic development and were so-called a "diseases of the rich".The burden of non-communicable diseases in developing countries has increased however, with an estimated 80% of the four main types of NCDs — cardiovascular diseases, cancers, chronic respiratory diseases and diabetes — now occurring in low- and middle-income countries.