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A magnificent, profoundly humane “biography” of cancer—from its first documented appearances thousands of years ago through the epic battles in the twentieth century to cure, control, and conquer it to a radical new understanding of its essence.
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Some features of the human circadian (24-hour) biological clock A circadian rhythm ( pron.: / s ɜr ˈ k eɪ d i ə n / ) is any biological process that displays an endogenous , entrainable oscillation of about 24 hours.