Effect of spaceflight on the human body of muscle fibre prominent in muscles also change. Slow twitch endurance fibres used to maintain posture are replaced by fast twitch rapidly contracting fibres that are insufficient for any heavy labour. Advances in research on exercise, hormone supplements and medication may help maintain muscle and body mass. Bone metabolism also changes. Normally, bone is laid down in the direction of mechanical stress. However, in a microgravity environment there is very little mechanical stress. This results in a loss of bone tissue approximately 1.5% per month especially from the lower vertebrae, hip and femur. Due to microgravity and the decreased load
The Body in the Library discloses a diabolical plot." Robert Barnard: "Bravura performance on a classic situation. St Mary Mead regulars figure in the case, pleasantly diversified by fashionable seaside hotel guests and the film crowd. If you think what happens to the body after death is unlikely, try the more 'realistic' P.D. James' "An Unsuitable Job for a Woman"." In Chapter 8 the author gives herself a namecheck from the mouth of the young boy, Peter Carmody. Explaining that he enjoys reading detective stories, Peter says that he has the autographs of Christie, Dorothy L. Sayers, John Dickson Carr and H. C. Bailey. In