Includes bibliographical references and index.

Biology or stupidity? (thunder) -- Some like it hot (learning temperature) -- Not-so-white lies (lies) -- Everybody in the pool! (tools guys brains) -- Say cheese (smiling) -- Just my type (muscles rating) -- Flower power (growing flowers) -- Drive, baby, drive! (guys and grandmother's driving risk) -- Heartbreak hotel (harder break ups) -- Let's have a contest (excelling at diff things) -- By hook or crook (crimes) -- It's got to be here somewhere (memory types) -- What's so funny? (jokes) -- Seasonal affection disorder (clothing more sexy) -- Buzz off! (mosquito attraction) -- Women and menu (girls eat more around guys) -- No cry babies allowed? (emotional intelligence) -- If you're head of the class (overestimating) -- The key(board) to happiness (action videos) -- Silence is golden? (words/day) -- Man of my dreams (dreaming about men) -- Cootie or cutie? (guys more germs) -- Do it with the lights on or off? (hammering) -- Don't sweat the small stuff (odors) -- The eyes have it (tears).

Age: 12-18