Answer: Your heart, brain system, and other organs are unable to function normally when your body temperature decreases. Hypothermia, if left untreated, can result in heart and breathing system failure, as well as death. Exposure to cold weather or immersion in cold water is a common cause of hypothermia. Hope it helps( ◜‿◝ )♡
Imma says intellectual... Considering that intellectual deals with the Brain, skills, etc, I would say it is the best choice because reading helps in the development of the brain.
