Ongoing screening studies with brain scanners to find out which is in 2024 the happiest man in the word with the best method which is currently available?

If you look at the faces of all of these people which we listed here, which one is the happiest of all of these, with the best method, with the highest gamma wave activity in the left pre-frontal cortex? Is it now Dilgo Khyentse Yangsi Rinpoche instead of Matthieu Ricard, or is it Deepak Chopra, …