I'm sure the list is great in theory and I agree with some points on it but going through the hassle of trying to follow all the items on that list for 50+ years would probably lessen my life rather than prolong it.
I've known a lot of people who have grown to a VERY old age and really haven't eaten that healthy. One is my grandfather who makes his own moonshine and routinely eats very starchy fatty foods in Puerto Rico along with lots of white rice. The only rule he probably follows on the list is eating lots of fish and fruits, but they tend to be the less healthy ones like mangos and plantains. I think there are too many external factors like your environment that play a role to your mental health.
I've known a lot of people who have grown to a VERY old age and really haven't eaten that healthy. One is my grandfather who makes his own moonshine and routinely eats very starchy fatty foods in Puerto Rico along with lots of white rice. The only rule he probably follows on the list is eating lots of fish and fruits, but they tend to be the less healthy ones like mangos and plantains. I think there are too many external factors like your environment that play a role to your mental health.