Board Thread:Questions and Answers/@comment-7113521-20130311214256/@comment-5584420-20130312034749

health bar regenerate only from food i think, and food bar dont regenerate, only being kept from dropping from 9 bar

breath underwater, i think its only blocking damage, not keeping air bar

running fast, u must hold Left Ctrl (the one used by optifine to zoom in), and then walk, u will run fast, or if u jump u will jump very high.