WHAT'S GOTTEN INTO YOU: The Story of Your Body's Atoms, from the Big Bang Through Last Night's Dinner

All matter has an ultimate birthday: the day the universe was born. If you weigh 150 pounds, you've got enough carbon to make 25 pounds of charcoal, enough salt to fill a saltshaker, enough chlorine to disinfect several backyard swimming pools, and enough iron to forge a 3-inch nail. But how did these elements combine to make us human?