Re: You get all peed off and then...
Last time I went to a Specialist (Dermatologist) b4 Medicare, to freeze off 3 places I had marked with an ink pen b4 going was $800 minus the 40%. They charged a "room fee" of $300. I just sat on a chair. Needless to say, I never went back. However, I had previously bought a liquid nitrogen dewer on ebay and had bought the liquid gas at the gas place and treated myself in the past. Once, the specialist did have to scrape and burn a spot that pathology said was trouble...but, I had suspected as much before I went in.
If you're willing to do the work, you can keep up with yourself well.
I have not smoked in years, but, lung cancer is a pretty easy way to go compared to the rest. You're pretty much full speed up until the end.
I am no longer obese, but am still overweight. Weight weighs on you as you age but I have seen PLENTY of obese folks living into their 90's.
I respect your research and mind. If you are not in education, you should be.