I don't like my job and in 15 years I'll have been there 35 years and I'm hoping to retire at 55. I think I am in more danger to my health driving back and forth to work, breathing in exhaust fumes and dodging overly aggressive drivers than being at work and dealing with the stress there. And yes, it might be a control thing. My blood pressure rises whenever I'm running late because of an accident or road construction. At least I have a little bit of control over my circumstances while I'm at work.
I work with statistics every day and it is very easy to manipulate figures. For instance one of the reasons so many people die after retiring can be disability, however; another reason could be that they studied men over 65 that retired between the ages of 60 and 65. If the study group were men age 50 to 65, the results could have been far different.

Then don't forget to add in the normal life expectancy, nutrition, access to medical care, marriage, divorce and death of a spouse - wow what a difference! You also need to know who the statistics are for.
I hope that if I retire early I'll have more time to do the things I want to do. Hopefully that alone will add a year or two to my life.