Frances M. Ashcroft Knihy

The debut of a female Steve Jones -- likeable, literate, lucid and laconic. A sprightly, lavishly illustrated book on the science of human survival. How do people survive extremes of heat, cold, depth, speed and altitude? This book explores the limits of human survival and the physiological adaptations which enable us to exist under extreme conditions. In man's battle for survival in the harshest of environments, the knowledge imparted by physiology, the 'logic of life', is crucial. What causes mountain sickness? Why is it possible to reach the top of Everest without supplementary oxygen, yet be killed if a plane depressurises suddenly at the same altitude. Why are astronauts unable to stand without fainting when they return to Earth? Why do human divers get the bends but sperm whales don't? Will men always be able to run faster than women? Why don't penguins get frostbite?

From before birth to the last breath we draw, from consciousness to sexual attraction, fighting infection to the beating of our hearts, electricity is essential to everything we think and do. This title reveals the secrets of ion channels, which produce the electrical signals in our cells.

"This is a wonderful book. Frances Ashcroft has a rare gift for making difficult subjects accessible and fascinating." —Bill Bryson, author of The Body: A Guide for Occupants What happens during a heart attack? Can someone really die of fright? What is death, anyway? How does electroshock treatment affect the brain? What is consciousness? The answers to these questions lie in the electrical signals constantly traveling through our bodies, driving our thoughts, our movements, and even the beating of our hearts. The history of how scientists discovered the role of electricity in the human body is a colorful one, filled with extraordinary personalities, fierce debates, and brilliant experiments. Moreover, present-day research on electricity and ion channels has created one of the most exciting fields in science, shedding light on conditions ranging from diabetes and allergies to cystic fibrosis, migraines, and male infertility. With inimitable wit and a clear, fresh voice, award-winning researcher Frances Ashcroft weaves together compelling real-life stories with the latest scientific findings, giving us a spectacular account of the body electric.

Warum überfliegen viele Vogelarten problemlos den Mount Everest, während Menschen erst nach einem langen Höhentraining und unter größten Strapazen bis zum Gipfel vorstoßen können? Wie stellt sich der menschliche Körper auf extreme Hitze oder Kälte ein, wie reagiert er in Schwerelosigkeit? In diesem spannenden Buch vermittelt die renommierte britische Physiologin Frances Ashcroft verblüffende Einblicke in die Wissenschaft des Überlebens und ruft beim Leser immer wieder Staunen hervor. Unglaublich sind nämlich die Strategien, mit denen Lebewesen den extremsten Umweltbedingungen widerstehen.