Please understand.

But seriously, if his health's on the line, it's for the best.

Must have been the stress right before Mario Kart 8's release... The good sales should help with that!

Wouldn't it be ironic if his health is what finally puts out of the top job at Nintendo :P?

Oh, hopefully nothing too serious. Naturally an expo as crazy as this one can mean ginourmas stress and pressure lasting upon one man's shoulders.

Probably under a lot of stress, though it could be more serious than that.

Notice there hasn't been an Iwata Asks lately ... Mario Kart 8 didn't get one, neither did Kirby Triple Deluxe or DKC: Tropical Freeze.

There is a shareholder vote coming up on June 27th and his approval ratings have dropped the last few years, dropping from the high 90% range to 77% last year and probably will go lower again this year. 

Maybe he partied too hard after seeing the sales of MK8/Wii U this week.

Perfect.