Latic acid fermentation occurs in

occurs in the human body, this is caused by a succesion of anaerobic respiration, therefore not enough energy can be created due to the fact that there is a lack of oxygen to break those energy cells, therefore in order to somewhat 'compensate' the body fermentates the bi-products which are unable to carry on to further create energy for the body use. therefore latic acid is made- this is also the reasoning behind cramps etc. due to the fact anaerobic cellular respiration is occuring therefore not enoungh energy is created by the cells in order for movement or vital life processes.