Khan Academy Static

6B: One third of our lives is consumed by the mysterious process called “sleep.” There is a lot we don’t know about sleep, but we will discuss what we do understand in this module. You will find why napping for a twenty minutes in the afternoon may not be such a bad idea as you explore states of consciousness, circadian rhythms, sleep stages, and sleep disorders.

15608_Breathing_related_sleep_disorders.html

15607_Sleep_disorders.html

15603_States_of_consciousness.html

15604_Sleep_stages_and_circadian_rhythms.html

15609_Hypnosis_and_meditation.html

15605_Dreaming.html

15606_Dream_theories_Freud_activation_synthesis_hypothesis.html