e Page(s) 79-80 2.3 How Does Your Brain Communicate With Your Body? Fill in the blanks to complete the passage about the impact of the endocrine system on physical development. Jason is in middle school and is well below normal height for his age. The hormone , which is released by the , may be in short supply in his body. People like Jason who are deficient in this hormone may benefit from taking it, but those with levels should avoid taking it, as there are few benefits and many health risks. estradiol abnormal* GH epinephrine normal thyroid pituitary gland* testosterone