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hormones affect certain parts of the brain
the brain affects the secretion of sex glands
when all of this is put together in a magnifying glass what you are asking about happens
psychophysiology of this mechanism is much more complex but it looks something like this
the brain affects the secretion of sex glands
when all of this is put together in a magnifying glass what you are asking about happens
psychophysiology of this mechanism is much more complex but it looks something like this