Robert Sapolsky is a professor of biology, neurology, and neuro-surgery at Stanford University. He’s also a neuroendocrinology researcher and author. In his newest book Determined: A Science of Life Without Free Will,  he posits that extensive scientific research indicates that our decisions and choices in life are largely out of our control. Neuroscience, genetics, evolutionary theory, and child development are several factors that can help us understand how we act is predetermined, contrary to popular belief.