There have been many efforts to account for the US mortality disadvantage. There is no single answer, but three factors stand out. First, death rates from drug overdose are much higher in the US than in Europe and have risen sharply in the 21st century. Second is the rapid rise in the proportion of American adults who are obese. In 2016, 40% of American adults were obese, a larger proportion than in Europe. Higher levels of obesity in the US may account for 55% of its shortfall in life expectancy relative to other rich countries. Third, the US stands out among wealthy countries for not offering universal healthcare insurance. One analysis suggests that the absence of universal healthcare resulted in 45,000 excess deaths at ages 18-64 in 2005. That number represents about a quarter of excess deaths in that age range.
The ‘mortality penalty’ that the US pays every year is equivalent to the number of Americans who died of Covid in 2020
(emphasis added)
The US’s far better COVID vaccine rollout (compared with Europe’s fiasco) surpised and impressed me because it was the kind of thing that I almost automatically expect Europe to do better.