Survival skills
A human being can survive an average of three to five days without the intake of water. The issues presented by the need for water dictate that unnecessary water loss by perspiration be avoided in survival situations. The need for water increases with exercise.
Andreas Mihavecz
Andreas Mihavecz is an Austrian from Bregenz who holds the record of surviving the longest without any food or liquids. His ordeal is documented in the Guinness World Records.