For my project I am planning to map the average amount of physical activity of people across the United States. I will take the average physical activity for each state and compare them with the other states. I wanted to do something related to the well-being of people in each state, and I hypothesized that more physical activity is correlated to higher well-being. I also wanted to stay away from measuring obesity rates, since obesity has a negative connotation whereas physical activity is more positive.
Here is a pretty comprehensive report on physical activity in 2014: http://www.cdc.gov/physicalactivity/downloads/pa_state_indicator_report_2014.pdf