("Brain Tumor Symptoms, Treatment, Support, Research | American Brain Tumor Association") Fertility is controlled by the pituitary gland which creates hormones. The pituitary gland is a master gland, although it is only pea size. The gland is located below the larger portions of the brain. ("You & Your Hormones") Damage of this function can result in trouble conceiving a child, and even complete infertility. Personality is developed and controlled by the frontal lobe, which generates all components of behavior. When large amounts of pressure is applied to this area, personality can be altered. Socially accepted behavior is disregarded, self monitoring, and impulse control and many aspects of personality is at risk for damage. The temporal lobe process hearing, the lobe receives sound and speech, and allows for comprehension of the speech. Hearing loss is mainly associated with a specific type of tumor, a Acoustic Neuroma. Located deep inside the skull, as these tumors grow they affect many portions of brain that control vital functions of the human body. Hearing is so greatly affected because of the location of the tumor, it grows horizontal to the internal auditory canal. ("Acoustic Neuroma | House Clinic") Other tumors can still have an affect on hearing, just not as severe. The limbic system and more specific, the hippocampus is responsible for memory function. The brain tumor does not generate any harm to the human body, the presence and weight, or pressure of the brain tumor cause the damage to these functions. ("Dr. Isaac Yang, Neurosurgery - Los Angeles , CA”)
Doctor Isaac Yang, MD, answered on behalf of UCLA Health, “A brain tumor by itself doesn’t directly affect the body...What brain tumors do is affect either the brain itself or the spinal cord by compressing and compromising the function of the brain that it involves