Final answer:
HIV/AIDS, osteoporosis, infrequent dental visits, and stress are factors that can lead to weakened immune systems and increased susceptibility to noninfectious diseases. Lifestyle changes and preventive measures can significantly lower the risk of these diseases, with behaviors like smoking, poor diet, and physical inactivity being major contributors.
Step-by-step explanation:
HIV/AIDS, osteoporosis, infrequent dental visits, and stress are examples of factors that contribute to immunosuppression and an increased risk of noninfectious diseases. These conditions and behaviors, along with others like hypertension, coronary heart disease, and irritable bowel syndrome, share common risk factors that largely result from lifestyle choices or environmental exposures.
While some diseases like certain cancers have genetic components, many noninfectious diseases such as heart disease, stroke, and diabetes are linked to lifestyle behaviors. Modifying these behaviors, which include smoking cessation, healthy diet, and regular physical activity, can significantly reduce the risk of developing these illnesses.
For instance, obesity, high blood pressure, and high blood glucose levels contribute to metabolic syndrome, a risk factor for cardiovascular diseases and type 2 diabetes—conditions that are largely preventable through healthier choices.
The consumption of sweetened beverages, smoking, and lack of physical activity are major contributors to these conditions. Interventions aimed at these behavioral risk factors are crucial for preventing the onset of many chronic noninfectious diseases. Moreover, stress has been shown to weaken the immune system, making the body more susceptible to illness.