Piece of Heart
Throughout Hyrule Link can find and earn Pieces of Heart which when collected will instantly heal the hero and after gathering enough pieces his total amount of health will increase. Typically pieces are gathered from many chests some of which are hidden requiring careful observation and some of the various items the hero can acquire while others are gifts from NPC's as rewards for various tasks.The amount of pieces required to collect has been changed to 5 from the previous games standard 4 and there is a total of 45 pieces to find throughout the adventure.
In addition to pieces of heart; Heart Containers can be found and collected and are fully assembled hearts immediately upgrading health in addition to automatically healing the hero. These are gathered from defeating the bosses from the many dungeons featured in the world in addition to the key items needed to progress the story.