Two common theories about dreams are the Freudian theory that dreams are repressed desires and Hobson's activation-synthesis theory that dreams are the result of random brain stem circuits actively overwhelming the cerebral cortex (Pinel, 2007). The two common sleep theories that attempt to address the purpose of sleep and sleep habits: recuperation and circadian. Recuperation theory works off the principle that sleep restores the body to a state of and sleep renovates energy levels. Recuperation theorists believe that the very act of being woken causes one to become tired and sleep deficiency may cause developmental disorders so that we sleep until the body is physiologically sound. Circadian theorists believe that we become tired when it gets dark outside, the function of sleep is to preserve energy, sleep depends on whether one is vulnerable to predators, and sleep is based on an internal timing mechanism. The main difference between recuperation and circadian theories is that circadian theory focuses primarily on when a person sleeps and the circadian sleep cycles, while recuperation theory focuses primarily on why we sleep and the recuperative value of
Two common theories about dreams are the Freudian theory that dreams are repressed desires and Hobson's activation-synthesis theory that dreams are the result of random brain stem circuits actively overwhelming the cerebral cortex (Pinel, 2007). The two common sleep theories that attempt to address the purpose of sleep and sleep habits: recuperation and circadian. Recuperation theory works off the principle that sleep restores the body to a state of and sleep renovates energy levels. Recuperation theorists believe that the very act of being woken causes one to become tired and sleep deficiency may cause developmental disorders so that we sleep until the body is physiologically sound. Circadian theorists believe that we become tired when it gets dark outside, the function of sleep is to preserve energy, sleep depends on whether one is vulnerable to predators, and sleep is based on an internal timing mechanism. The main difference between recuperation and circadian theories is that circadian theory focuses primarily on when a person sleeps and the circadian sleep cycles, while recuperation theory focuses primarily on why we sleep and the recuperative value of