One of the effects of this sudden adrenaline release is that the mother is alert when her baby is born. It is an advantage among mammals to have enough energy to protect the newborn baby. Another effect of this adrenaline release by the fetus is that the baby is alert at birth, with wide-open eyes and dilated pupils. Mothers are fascinated by the gaze of their newborn babies. Not only are the same hormones involved in the different episodes of sexual life, but the same patters, the same sort of scenarios are reproduced.
Some women seem to be euphoric, others seem to be angry, while others express a transitory fear.
All of these behaviors are compatible with a sudden release of adrenaline. The primitive brain For human beings, the main gland at work during each kind of sexual conduct is the brain. In modern biological sciences, the brain is seen primarily as a gland which releases hormones. When this rational brain is overactive, it tends to inhibit the primitive brain. During the birth process, there is a time when a laboring woman behaves as if she were on another planet.