In this episode of Cool Science Radio author and Johns Hopkins neurobiologist David Linden discusses his new book, UNIQUE: The New Science of Human Individuality. Linden explores why one person like to sleep in a cold room, while others like it hot, why hoppy beer appeals to some but others find it bitter. Topics that touch all of our lives -from sexuality, gender identity, food preferences, biological rhythms, mood, personality, memory, and intelligence – Linden shows that human individuality is not simply a matter of nature versus nurture.