What if I lose my voice?

I feel like an astronaut. I CAN'T catch a cold. I'm about to embark on a mission requiring sleep deprivation and no days off. Can I stand up to this kind of pressure? I doubt it. But I'll be practically living at the IBC...International Broadcast Center. It's darn roomy...and NBC's using 65,000 sq. feet. Catered chow 24 hrs. All the world's media. Al-Jazeera? I'm going to be hanging with those cats. And they change the sheets at the hotel every damn day. If freakin' Martha can do 5 months, I'll ace this baby.