Why can kids hear better than grown-ups? Why can’t humans spit like llamas? This brainy and zany Q&A book answers the serious and silly questions kids have about the human body.

Put on your lab coat and grab hold of your stethoscope as you embark on a scientific mission to boost your brainpower on all topics about the human body! Explore anatomy and find out why bones break. Look into the senses and discover why sour foods make your mouth pucker. Get acquainted with genetics to find out why your hair changes over time. Be boggled by the power of your brain as you decipher why you can hear yourself think. Get grossed out—in a good way—as you uncover why snot and boogers have an important job to do. Discover how scientists study new diseases, and ponder if humans will one day be able to live forever.