USA doesn't make the Top 50 for life expectancy

According to a study, the top reasons include:

• smoking
• obesity
• violence
• poverty
• Automobile Accidents
• Access to healthcare.

Though the over arching reason appears to be "The failure to prevent poor health is a factor that is contributing..."

https://en.wikipedia.org/wiki/List_of_countries_by_life_expectancy
https://ourworldindata.org/us-life-expectancy-low