In the human body we have a system that deals with chemical communication through the use of hormones, the endocrine glands that secrete hormones and the target cells that respond to the hormones, this system is called the Endocrine System . This is used to help maintain the essential purpose of the human body which can range from metabolism to growth. This system also works in line with the nervous system in regulating internal functions and maintaining homeostasis and even long-term behavior. There are many hormones in the human body that can influence attitude and behavior. A very common behavior in human life, which is strongly influenced by hormones, is sexual behavior. There are a number of hormones created by the gonads and placenta that influence this behavior. These can be divided into two different categories for both male and female, male hormones are known as androgens, which have testosterone which allows for the progression and preservation of the male reproductive area, it also provides secondary characteristics and behaviors. Female hormones are known as estrogen, like estradiol, which functions in the improvement and preservation of the reproductive area of ​​the woman, which allows the growth of other sexual characteristics, also changes in behavior and reproduction of the mammary glands. However both males and females produce both types of hormones and both have important effects, but males produce more androgens and females produce more estrogen. Much attention has been paid to the connection between behavior and hormones and this shows that the normal difference in the amount of hormones presented correlates with the difference in behavior. A case of this can be... middle of paper... has effects on female hormones because it is considered controversial to do. Therefore we must assume that hormones influence the behavior of all human beings, even if research is conducted on male hormones. While it is still known that a woman's menstrual cycle affects her behavior and mood, there is still no clear research on which hormones influence this change. On the other hand, females still contain some of the hormone testosterone in their system, so this could influence the behavior of females even if they do not have a high amount of testosterone, however this has yet to be studied due to complications. Overall we can see that hormones can influence a person's behavior and there is still a lot of research to be done to find out which hormones can influence which behavior.