How does you body maintain internal body Condition
Your body has to control internal conditions of your body or else the enzymes will not work. Iy does this through HOMEOSTASIS.
Removing Waste Products
The cells in your body are constantly producing waste products as a result of chemical reactions. the more extreme the conditions you put yourself in, the more waste products are produced.
There are two main poisonous waste products which would cause serious problems for your body, of the levels built up. These are CARBON DIOXIDE and UREA
Every cell in the body respires, so every cell in the body produces CO2. It needs to be removed from the body as if it all remained dissolved in the cytoplasm, it would affect the pH of the cells. Dissolved CO2 produces an ACIDIC solution. A low pH affects enzyme action in the cells.