"The Shallows: What the Internet Is Doing to Our Brains" is a book by Nicholas Carr that explores how the internet affects our cognitive abilities. Carr argues that constant online distractions can diminish our capacity for deep thinking and concentration, leading to superficial understanding. The book discusses the neurological changes that occur as we engage with digital media. Carr highlights research showing that frequent internet use can alter brain structure and function, making it harder for individuals to retain information and engage in reflective thought.