According to Richard Wilkinson, which is the most important variable influencing a county's overall level of health?

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Richard Wilkinson argues that income inequality within a country is the most important variable influencing a country's overall level of health. He suggests that countries with greater income inequality not only have worse health outcomes overall, but also have worse outcomes across all socioeconomic levels. This is supported by research that shows a strong correlation between income inequality and a wide range of health problems, including higher rates of obesity, mental illness, and infant mortality.

According to Richard Wilkinson, Which Is the Most Important Variable