This video is targeted at the South African Grade 12 CAPS syllabus, STRAND 2:LIFE PROCESSES IN PLANTS AND ANIMALS, TOPIC: Homeostasis in humans. It introduces homeostasis: maintaining constant, optimal internal environment and looks at negative feedback using glucose regulation, thermoregulation: adaptations of human skin; sweating, vasodilatation, vasoconstriction. It is one of a set of short videos that cover this topic, and is designed to be used in an online course within the Chisimba eLearning platform. Although it is targeted at the CAPS syllabus, it can be used with the current grade 12 syllabus as well.