Final answer:
Diseases of affluence are linked to unhealthy lifestyle choices and obesity, and are now more common among the poor, contrary to their historical prevalence in wealthier populations. The rising obesity rates globally contribute to a higher incidence of noncommunicable diseases. This public health challenge affects nations across all income levels, exacerbating health disparities.
Step-by-step explanation:
Diseases of affluence, also known as lifestyle diseases, have been linked with unhealthy lifestyle choices and first became prevalent in the richer nations of the world. However, as health disparities have shifted, these diseases are now more common among the poor.
Obesity, a known risk factor for many noncommunicable diseases such as cardiovascular problems, musculoskeletal problems, diabetes, and respiratory issues, has seen rising rates across the board, particularly in high-income nations like the United States.
It is important to note that the prevalence of obesity is not just an issue in affluent societies but is also on the rise in low- and middle-income countries.
This increase is contributing to higher rates of noninfectious diseases, which include heart disease, stroke, and cancer, in these nations as well.
With modern conveniences and lifestyles that encourage less physical activity and the consumption of fast, cheaper, and often unhealthier meals, obesity has become a significant global health challenge.
Vulnerable populations, even in wealthy societies, are increasingly affected by health disparities. Consumption of too many calories and insufficient physical activity are leading health problems, even among the poor, which is a stark contrast to historical perspectives where affluence was associated with better access to healthy lifestyles.