Final answer:
Unhealthy environmental conditions, limited healthcare access, economic instability, and social isolation are key external factors that negatively impact health and lifestyle choices. They contribute to stress, poor health, and complex interactions with personal lifestyle choices, making it difficult to pinpoint exact causes for health outcomes.
Step-by-step explanation:
External factors play a significant role in affecting lifestyle choices and overall health and wellbeing. The provided options all represent different ways external factors can impact lifestyle choices. For instance, unhealthy environmental conditions can lead to a number of health issues, including types of cancers, which are a leading cause of death in higher-income countries and have environmental influences. Limited access to healthcare services, economic instability, and social isolation are also significant external factors that can lead to high levels of stress and poor health, particularly among people with lower social status who may experience lack of control, unemployment, and resource inequality, including less access to health care and other community resources.
All these factors, whether they are a lack of clean water supply, inadequate sanitation measures, or crowded living conditions combined with low levels of education, contribute to negative lifestyle choices and poor health outcomes. Analyzing the intricate relationship between personal preferences such as diet, exercise, and tobacco use, and external factors including healthcare expenditures, stresses the complexity of determining the exact cause of a given health outcome like life expectancy.