"This is a fact-packed and energetic look at the science of stress and the history of stress research. It explores the effects of stress on the human body, how those effects were discovered, and what we can do about them. The book also includes wacky historical beliefs, strange experiments and the biographies of stressed-out stress researchers. Middle grade readers will learn about o the fight, flight or freeze response o how our bodies handle chronic stress o post-traumatic stress disorder o the beneficial effects of stress o anti-stress science (methods people use to counteract stress)"-- Provided by publisher.