sleepwalking

i had never seen someone sleepwalk but when i was young my brother and I used to sleep in the same bedroom. one night i saw him standing on his bed and i talk to him and he did not do anything and when he tried to walk he felt down of bed and he stay there all night. that was the only time i have seen a sleepwalker. 
i read that it occurs mostly in children and its very rare that it happens in adults. they have not well understood what might cause sleep walking. some factors that lead to sleep walking is the consumption of alcohol, drugs or any other medication. people that are sleepwalking, they do not experience of being   dreaming.
there are myths that said that you should never wake a sleepwalker because it may provoke some mental consequences or damage. but there is no danger in waking them up.

sex differences in the hypothalamus

so i was reading that the hypothalamus has different functions but never thought that it has to do with the sex too. 

in men, one section of the anterior area of the hypothalamus controls the sexual behaviors.
in women, some parts of their hypothalamus can generated cyclic patterns of hormone release, in other words In humans, testosterone produces its organizing effects on the hypothalamus by itself.the menstrual cycle. In organic chemistry, a ring of six carbon atoms containing three double bonds is an aromatic compound. An enzyme found in the brain can aromatize testosterone into estradiol. Other androgen that cannot be aromatized into estrogen are less effective in masculinitizing the hypothalamus.

taste

for some reason i always thought that taste and flavor was the same thing but is not. taste is the sense alone and flavor is the combination the senses of taste and smell. the relation between the this two senses is due to that both of the senses axons converge onto many of the same cells in an area called the endopiriform cortex. this convergence allows the taste and smell combine and make us choose what food we like the most. i remember one time i had a cold and a running nose. i could not smell anything and the food did not have the same flavor. also i have seen those same thing in some flu or cold commercials were someone eats an onion instead of  an apple and he didn't taste the flavor of the onion.

Hippocampal Damage

the hippocampus is located in the temporal lobe, it has a role in emotions and sexuality, it also contains "place" cells that construct mental maps of position, learning and remembering space. it is also the center of short term memory and it helps with the ability to increase the speed in learning new items

the memories are first processed in the hippocampus for a couple of weeks after that memory move to the ceribral cortex where they stay as long-term memory. people that had damage in the hippocampus had trouble making new memories but the old memories still in them, since the old memories are storage in the cerebral cortex and not in the hippocampus.

also the hippocampus is in charge of remembering spatial layouts and landmarks. in other words if a person with hippocampal damage, will have trouble knowing where they are and therefore get lost.

right and left hemisphere

it is amazing how the brain work and its structure. the brain is basically divide in two, the right and the left hemisphere that they are totally separated but only united by the corpus callosum. each hemisphere has its own characteristics and control different parts, abilities and functions in our body.

the right hemisphere: primary it controls the whole left part of the body, including the vision and hearing abilities. in cognitive functions: time perception, music appreciation, symbols, objects, events, geometric and nonverbal communication. it is the main controller of emotions.

the left hemisphere: it controls the whole right proportion of the body. the left hemisphere also perceives visual and physical sensations from the right half of the body. it also the main controller of language, consciousness, handedness (that is, if one is right or left handed, is directly related to language representation in the brain. the exceptions being those who were forced to become right or who became left handed following a brain injury) and ego-centric speech and the origin of thought