There’s no end to the wonders of the human body, says Bill Bryson

Bill Bryson has come a long way from being the funniest, most irreverent travel writer around. He’s still as amiable, avuncular and amusing as ever, but his subject matter has broadened over the decades to cover nearly everything, from science to Shakespeare. His modus operandi, however, has not changed. He absorbs reams of facts, the most interesting of which he presents liberally sprinkled with mischief, wit and lateral thinking.

On seeing this book’s title, I prepared myself for the arid science I ingested when I studied to be first a doctor, then a hospital physician and then a consultant anaesthetist. But I needn’t have worried. Bryson feeds the pith, pulp and bitter pips of a subject into his brain and produces a sweet, zingy quantity of juice.