Brain glucose level, blood oxygen level, and other parameters. These hypothalamic nuclei send output signals to motor areas that can generate actions to rectify deficiencies. Some of the outputs also go to the pituitary gland, a tiny gland attached to the brain directly underneath the hypothalamus. The pituitary gland secretes hormones into the bloodstream, where they circulate throughout the body and induce changes in cellular activity. The individual animals need to express survival-promoting behaviors, such as seeking food, water, shelter, and a mate. The motivational system in the brain monitors the current state of satisfaction of these goals, and activates behaviors
The Tale of the Body Thief the evening he finds that both James and Talbot have disappeared. Lestat finds David in Florida and is surprised to find that his friend, despite his earlier protestations, now wants to become a vampire. However, while taking his blood, Lestat discovers a final trick—when forced out of Lestat's body, James took over Talbot's body instead of returning to his own. Lestat angrily attacks James, crushing his skull. The blow proves fatal—the injury damages James' brain and prevents him from leaving the dying body or trying to switch bodies before his current one dies. At this point, "Tale of the Body