I’m not sure this is true…
“… proven by science, to be the happiest person on Earth.”
This is a study, tested on one or just a few people, and interpreted by one or a few people. Unless every human in the planet was similarly tested, I don’t see how anyone can make the claim that it was “proven” by science.
While the ideas here may be good, I don’t trust “studies” simply because they are so subjective.