Why do humans have lizard brains

It is in charge of fight, flight, feeding, fear, freezing up, and fornication..Wild animals are wild because the only brain they possess is a lizard brain.New layers of brain tissue would grow and develop on top of old layers, leading to the existence of an old brain.New york daily news in 2017:The triune brain hypothesis, developed by the neuroscientist paul maclean between the 1960s and 1990s and widely popularized by the astronomer carl sagan, asserts that we have a lizard brain under our mammal brain, and that our mammal brain is itself under our primate/human brain.

Human is a specie and primate is a specie, we did not evolve from primates.Part of my book suggests that the human brain has evolved as a result of endless additions onto a basic structure, like adding rooms on to a batch at the beach.The lizard brain is the reason you're afraid, the reason you don't do all.The brain stem, or also called the brain stem, is made up of 4 different areas that are connected to the diencephalon.It governs balance, territoriality, mating, feeding and other instinctual activities.

Origins of the reptilian brain myth.