that tells lee brandt essentially with the energy needs of the body are in fact hunger to go find foodd a food because we have enough blood sugar and your body. there is a coordination on the behaviors the body has to engage in to stay alive and maintain energy levels. these hormones do something very similar but for reproduction not for maintaining energy but for producing eggs and sperm. exposure for the female our offspring. to compete for mating opportunities. when the hormones coordinate the availability of the eggs and sperm, the physical trait wing to engage in nurturing and competition. in acts in the brain to motivate the individuals to use those to have so good to have muscles and lactation if you don't have motivation to use those muscles or use those breasts to feature offspring. the hormones to all of these different things by affecting the way energy is spent in the body on muscle, or fat, or egg production et cetera. that all starts with males in utero. so females don't actually need their ovaries to be producing estrogen to develop their reproductive anatomy don't do an