A baby's brain is a mystery whose secrets scientists are just beginning to unravel. The mystery begins in the womb -- only four weeks into gestation the first brain cells, the neurons, are already forming at an astonishing rate: 250,000 every minute.
Are we alone in the universe? Even if we could contact aliens, what would we say? How would we say it? And, most importantly, should we even be trying to make contact at all? This episode takes me on a journey to compose and send my own personal message into outer space.
Michael Mosley and a team of experts place human behaviour under the microscope. In the final episode, Michael and scientists Dr Jack Lewis and Dr Jennifer Wild explore the biology of fear and anxiety in the modern world. Fear is one of our most basic human emotions. In the past, it kept us from being eaten by a wild animal. But today, that isn't so much of a threat and yet we live in a state of anxiety - it's becoming unhealthy.
When examining the adolescent brain we find mystery, complexity, frustration, and inspiration. As the brain begins teeming with hormones, the prefrontal cortex, the center of reasoning and impulse control, is still a work in progress. For the first time, scientists can offer an explanation for what parents already know -- adolescence is a time of roiling emotions, and poor judgment.