And what this hormone does is it goes down to the anterior pituitary gland found right below the hypothalamus in the brain and it stimulates it to release two important hormones. One called the luteinizing hormone LH and another one called the follicle stimulating hormone or FSH. And what these two hormones do is they go down to the ovaries and they activate the ovaries. Now, by activating the ovaries, they initiate a monthly process known as the menstrual cycle. Now what the menstrual cycle is it's a series of events that lasts about 28 days. Now of course, this number can differ from one individual to another.