Things I Simply Can't Live Without

Call me crazy or difficult or high maintenance, but these are things I just CAN'T live without.
  1. Air
  2. Food
  3. Water
  4. Sleep
  5. Peristalsis
  6. White blood cells
  7. Potassium
  8. The Krebs Cycle
  9. Hemoglobin
  10. My iPhone