I have written 20 books over a 35 year period. Also, since 1998 I have gone on cycles of working a couple of years and then taking lots of time off. I do most of my writing during the time off periods.
Re: health: I try to walk or hike five to 8 hours a week, if I have time. I am mostly a vegetarian. I try to get a lot of sleep. Also, my Dad is 100 and in good health so maybe I got lucky in the gene pool.
My hobbies are cooking, reading (I have been going nuts with Chinese sci-fi recently), and hiking.
Re patents: there is no way I would try for a patent on my own. My patents were all team efforts with the help of highly skilled corporate patent lawyers.
Im interested in writing books but i cant seem to have enough time to make it a top priority for me
also how do you keep healthy at 70?
would you also say that in your case, tech is one of your primary hobbies?
also any advice on writing your first patent outside of your employer?