preview

Chronic Communicable Diseases : A Demographic Milestone

Good Essays

Introduction
The world is on the verge of a demographic milestone. From the start of documented history, young children have outnumbered their elders. However, during the past decade the number of people aged 65 or older outnumbered children under age five. Due to fall in fertility rates and significant rise in life expectancy, population ageing will continue or even accelerate. According to WHO, the number of people aged 65 or older is expected to increase from 524 million in 2010 to approximately 1.5 billion in 2050.
The significant increase in life expectancy during the past century was due to shift in the leading causes of disease and death. In 20th century, the major health problems were infectious and parasitic diseases that mainly …show more content…

Life course and Lifespan
The constraints to life course and lifespan are not as clear as once assumed. With suitable policies and programs, people can stay healthy and independent even during old age and contribute to their communities and families (Davey Smith et al., 2000). The life course approach to hypothesizing health and well-being has developed from research supporting the key role played by the early life events in determining an individual’s health trajectory. The relationship of risk and protective factors, such as socioeconomic status, toxic environmental exposures, health behaviors, stress, and nutrition, effect health during one’s lifetime (HRSA, n.d.).
Various health problems in adulthood and old age stem from infections and health conditions early in life. For example, and childhood rheumatic fever is a frequent cause of adult heart disease in developing countries. According to researchers characteristics of adult health are influenced before birth and that nutrition in utero and during infancy has a direct effect on the development of risk factors for adult diseases (Larkin M, 2013). Behavior and exposure to risk factors during a person’s adult life also effects health in older age. Exposure to toxic substances at work or at home, laborious physical work, smoking, alcohol consumption, diet, and physical activity may have long-term health effects (Larkin M, 2013).
Economies are globalizing, more

Get Access