Perhaps these numbers are not unfamiliar to you: One out of every ten people has a stomach ailment to some degree. One out of every six suffer from inability to conceive. The number of asthmatic children has grown by nearly four percentage points in the last ten years. In the next century, cancer will be the number one cause of death.
這些數字或許你並不陌生﹘﹘十分之一的人有或輕或重的胃病；不孕症患者高達六分之一；氣喘學童十年間成長了將近百分之四；下個世紀癌症將佔每四個病患中的一個… …。