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As infectious diseases are getting under control due to awareness, hygiene, clean water, improved sanitation, etc., mortality has decreased due to them and life expectancy has increased. The non-communicable diseases like diabetes type 2, hypertension, cancer are the diseases the incidences of which increase as age advances, i.e. with increase in life expectancy. Since life expectancy has increased by an average of 10 years from 1980 to 2015, quite evidently the non-communicable diseases have also increased and the mortality due to these has increased as well. This does not mean that other risk factors like unhealthy diet and sedentary life styles are not implicated in their causation. Besides these risk factors, increased life expectancy itself causes these non-communicable diseases which are rife all over the world presently.
No competing interests
09 October 2016
Jugal Kishore (Director Professor and Head, Community Medicine, VMMC and Sufdurjung Hospital). , Neeta Kumar (ICMR) and Arvind Nath (ICMR)