They live in clothes, on hair, on skin, they live under the skin, in guts, in blood. They're parasites, and they're really into us. But what are these small, squirmy, highly successful organisms? How did they evolve to live inside other organisms, to consume, sicken, and even kill them? Readers will enter the engrossing inner world of bugs, worms, and microbes, explore their riveting life cycles, and discover how these tiny creatures topple civilizations and ruin lives. Readers will learn how to avoid infection or infestation, and what to do if parasites have let themselves in.

Athlete's foot is an itchy, flaky, burning, sometimes gooey fungal infection that commonly occurs among athletes, but athletes aren't the only ones affected. This condition can happen to anyone at any age. Readers will learn symptoms of the ailment, as well as what causes it and how it's treated. Information includes the biology of fungi, mold, yeast, and bacteria responsible for athlete's foot and its complications. Treatments discussed include over-the-counter and prescription drugs, as well as natural remedies. Steps to prevent infection also feature ways to keep it from returning once it's cured.