Many parents are starting to feel a deep sense of unease at the amount of time their kids spend on devices. Teen Brain lays out what every parent needs to know: screens are highly addictive; if human beings engage in addictive behaviours between the ages of 12 to 22, when the human brain is uniquely fragile, the addictive pathways are laid down for life. Importantly, the book also sets out what the science is the solution.