“ARE WE STRESSED? NOT US!”
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... "ARE WE STRESSED? NOT US!" Genome Matt Ridley Harper Perennial 2004 Chapter 10 - "Stress" Pages 147-160 This book offers an insight into the genome, and takes the form of 23 chapters based on the chromosomes. The writer aims to illustrate one gene coding for one thing on each chromosome. Chapter 10 (or chromosome 10) concentrates on the subject of stress and the hormone affecting stress - cortisol. Ridley, an honorary doctorate of science, explores the factors leading to stress, and using interesting analogies, illustrates why and how cortisol is produced and why we become 'stressed'. He begins by explaining how five crucial hormones are made from cholesterol - progesterone, aldosterone, cortisol, testosterone and oestradiol. These are known as steroids, and can be used to create fascinating effects1. Steroids form so many of life's occurrences; particular steroids can be used to treat certain illnesses; build up athletes' bodies and even be used as oral contraceptives. CYP17 is














