My view might be classified as 'odd', but this is how I look at this problem, and this is what I ended up doing:
I do not mind living a decade shorter than those ones who are more active than me.
I have tried to be active, but could not fit it into my mentality. Note that I did not say my lifestyle, I said my mentality. I am unable to be active. I was not an active person a a kid, and I am not one as an adult.
If I aggregate all those activity hours together with all the stress about being more active (including following the effectiveness of standing desk news), it could maybe worth a couple of years of my life. I subtracted those years from that one decade, and decided that I am ok with not having that part of my life.
I continue programming 14 hours a day in the sitting style.