There's nothing natural about yoga.  That said, it's amazing how after doing yoga for a little while your body starts naturally fighting spontaneous inclinations to twist into a pretzel.  Like memory foam...

I woke up this morning to find 5 text messages on my phone, sent between 2am and 6am.  From different people.  I'm touched that you thought of me two hours before I had to wake up, but when do you sleep?

From dictionary.com: indefatigable\in-dih-FAT-ih-guh-bul\ , adjective;
1.Incapable of being fatigued; not readily exhausted; untiring; unwearying; not yielding to fatigue.
Or, Not Me.