Do men and women think differently? Is your brain hard-wired as a girl or boy? Neuroscience educator Nathan Wallis takes a fascinating journey into sex in the mind.Do men and women think differently? Is your brain hard-wired as a girl or boy? Neuroscience educator Nathan Wallis takes a fascinating journey into sex in the mind.Do men and women think differently? Is your brain hard-wired as a girl or boy? Neuroscience educator Nathan Wallis takes a fascinating journey into sex in the mind.