The classic about our little inhabitants in an updated and expanded new edition! Ninety percent of all cells in the body are bacteria and other tiny organisms - we are more microbe than human. Bestseller author Jörg Blech entertainingly and intelligently explains who lives with us, why our inhabitants are so important for our health, and how we can provide them with a good home. For this edition, he has thoroughly revised, updated, and supplemented his classic 'Life on the Human'.