The percentage of obesity is highest in America compared to the rest of the world. I think this is the most damning evidence that the health of the American lifestyle lags behind that of other countries.
(This site shows a plot taken from the OECD factbook of 2007: Swivel.com is for sale)
You’re correct that Europeans consume more alcohol per capita. (cite: http://www2.potsdam.edu/hansondj/AlcoholFactsAndFiction.html.)
However, if anything, alcohol consumption is good for you as long as it’s on a moderate level. Most of the Europeans I have known drink in moderation. (Great Britain and Ireland being the exception ;).) Alcoholism is of course bad for you, but I couldn’t find any good cites on alcoholism by country. All I could find was drug addiction by country, where America has a higher rate than European countries (cite: Yahoo | Mail, Weather, Search, Politics, News, Finance, Sports & Videos)
You’re also correct that Europeans smoke more than the US: http://encarta.msn.com/media_701500668/Prevalence_of_Smoking_by_Country_in_the_World.html
(The US isn’t on the list, which I assume means they have < 25% smokers.)
On the other hand, the Europeans I have known tend to be very good about maintaining their health through natural remedies including vitamins and supplements. I remember walking into a drugstore in Germany and being shocked by the hundreds and hundreds of supplements and remedies that you could buy there, each tailored to specific populations or conditions. There’s also a government organization in Germany (German Commission E) that studies the clinical effectiveness of herbal/natural remedies.
Also, Europeans eat better. Again Ireland and UK are not good examples of this, but in Italy for example, there is a greater amount of fruits and vegetables in the diet than in America. Aside from gelato, there isn’t the prevalence of sugary and/or salty snacks in Europe that there is in the US. Mealtimes (with colleagues for lunch and with family for dinner) seem to be more important than snacking, which may play a role. The statements describe my experience in Germany and France.
I realize the last two issues (health maintenance and better diet) are harder to cite than smoking and drinking and so these are my observations based on my personal experience. I would argue, though, that (on average) health maintenance and better diet are far more important in determining how healthy a nation is than the rate of smoking. (I’m leaving drinking out because I think the health benefits/detriments could be more controversial.)
Anyway, I see the conversation of this debate has moved on to different themes, so I’ll just post this and get back to work. 