undulate

You don't have to do the 5 questions things if you're yourself doing an AMA, only if you're requesting an AMA. Anyway, could you answer the questions you put up? They are very good.

Well the second one is what I though of when I first saw this thread. What is your mindset like when you're holding your breath?

What do you think have influenced your ability to do these extreme things more, your genes or external factors like your training?

I use many different techniques (visualization/imagry) ranging from childhood memories to imprinted images like dolphins and sharks.

This is interesting, it reminds me of the methods I use when I'm trying to fall asleep.