Answer:
there is no clear explanation why some people become violent while sleepwalking
Explanation:
Sleepwalkers who are suffering from stress, sleep deprivation, and depression do seem more susceptible to experiencing violent episodes than others, but there is no medical proof that negative emotions result in homicidal sleepwalking.
Heart Blood vessels. (Arteries, Capillaries, and Veins)
It is the nucleus that contains DNA and controls the functions of the cells