Human Body: Pushing the Limits, is a television program that premiered on the Discovery Channel on March , in North America. Titles in this series include "Strength", "Sight", "Brainpower", and "Sensation". Millions watched the first episodes of this part series on March . Since then "The Discovery Store" has had many requests to buy the DVD set. These videos were released after the final episodes on March at : and :pm eastern time. This show covers topics on how the body reacts to moments of extreme stress like being stuck in a cave or running away from forest fires. It is made up of four episodes that all concentrate on a certain aspect of our body when we are "pushed to the limit". ⁕Strength - This episode covers how our muscles react when we are pushed to the limit. It covers stories of how people can suddenly lift masses times his or her weight or run at speeds that even olympic runner can't match. ⁕Sight - This episode covers the aspect of how our eyes react in emergency situations. We can see much better and see details we normally can not see. ⁕Brainpower - This episode covers how our brain takes control of our body and can order our body to do things it usually could not or would not do. Examples include how our brain can order our body to eat the muscles of our body for energy or make us eat things we would usually find disgusting, and also covers dreaming.