I wasn't going to respond to this until I noticed it is tagged under livelonger. The study discussed doesn't show causation at all, simply correlation. In fact, it doesn't really tell us anything we didn't already know about education. The only real thing to note from the study was the lowering of rates of all diseases as people got a ninth year of education in Sweden. However, considering the sample size of only one country, and a lack of other comparable international studies, we can't make much of that 8-9 year education barrier. Even the reasoning proposed by the head researcher of the study seemed pretty sketchy; he "speculates that the ninth year helped students develop a different attitude about themselves." A Stanford professor claims "the additional year contributed to the students' long-term ability to understand health messages, think effectively and manage their lives", which sounds better, but is very vague and without much evidence. What I'm trying to get at, is that studying more doesn't necessarily help you to live any longer. The study only concluded that people who are more well educated tend to have lifestyles that are healthier because they have better jobs, thus leading to them being more healthy. Something that is fairly intuitive.
Yes you're correct, the study in the article is not well establish, and it practicably says that if you get one year study more people will live longer, by having a better life from the result from studying, which is not true in every case. Here is another study http://www.medicalnewstoday.com/articles/253166.php if you want look a it , that talks about the effect of keeping the brain active in older age, can reduce the ageing of the brain. I know it may sound obvious but is good to know.
Thank goodness! Then there's a reason to this return-to-school madness at the age of 47. Sigh. I have no idea what I'm doing with my life, but apparently I'll have longer to figure it out!!
I study like crazy, I have to if I want to pass physics classes where the average age is 8+ years younger than I am. I wonder if all that cramming counteracts all the cigarettes I smoke? Ahhhh wishful thinking ... LOL