"In their first-ever book, Mitchell Moffit and Greg Brown, the geniuses behind the wildly popular YouTube channel AsapSCIENCE, answer your burning questions, explaining the true science of how things work."-- Back cover.

Resolving persistent questions, rumors, and weird phenomena. Does being cold make you sick? -- Are silent farts more deadly? -- Is cracking your joints bad for you? -- Is the 5-second rule legitimate? -- Which is worse: childbirth or getting kicked in the balls? -- Does shaving make your hair grow thicker? -- Can sneezing pop your eyeballs out? -- Could you spontaneously combust? -- Is binge watching TV bad for you? -- Which came first: the chicken or the egg? -- Body talk. Brain farts -- The science of bad breath -- Can snot save us? -- Is there a hiccup cure? -- The scientific secret of muscle & strength -- Why are men so hairy? -- The science of aging -- The science of brain freeze -- Hypotheticals. Could a zombie apocalypse happen? -- What if you stopped going outside? -- Sensory perception. Why do we get pins and needles? -- Why do we itch? -- Selfie science: why do we hate photos of ourselves? -- Where does all the light go when you turn off the lights? -- Why does time feel faster as we age? -- Hot sex and other amorous pursuits. The science of sexy -- The science of heartbreak -- The science of love -- The science of orgasms -- Will dancing get you laid? -- Getting to the bottom of bad behavior. The science of swearing -- The science of lying -- The science of procrastination -- The scientific hangover cure -- Dreaming, waking, napping, sleeping. The scientific power of naps -- The science of morning wood -- The science of lucid dreaming -- What are eye boogers? -- Should you use the snooze button? -- What if you stopped sleeping?