Research on sleep and dreaming confirms that

According to psychological researches on sleep and dreaming, we found that older people don't sleep more than young adults; Our limb movements don't associate with the activity that we perform in the dream; sleepwalking has nothing to do with dream; lastly, although breaking the circadian rhythm is certainly miserable, but the circadian rhythm has no influence on our sleep schedule. Therefore the answer is e. none of the above is true.