Cholesterol is a fatty substance in the blood and in the body’s cells. The body needs some of it; it helps build cells and some hormones.

Cholesterol is a fatty substance in the blood and in the body's cells cholesterol是存在血液和身體細胞裡的一種脂肪物質 The body needs some of it身體需要一定量的它 it helps build cells and some hormones它幫忙建構細胞和一些荷爾蒙

The worry is “too much”, especially of the kind doctors flag, because it can build up in blood vessels and raise the chance of heart disease. People talk about it with food (eggs, meat, oil), with blood tests, and with medicine.

The worry is "too much"令人擔心的是「太多」 especially of the kind doctors flag特別是醫生會特別提出警告的那種 because it can build up in blood vessels and raise the chance of heart disease因為它會堆積在血管裡，提高心臟病的風險 People talk about it with food (eggs, meat, oil), with blood tests, and with medicine人們會拿它跟食物（蛋、肉、油）、抽血檢查、還有藥物一起討論

Though actually, the name is a chemist’s name, not a “cholera” name: it was built from Greek for bile plus “solid”, because this stuff was first found as a solid in gallstones — stones in the bile. That is why it looks like choler and cholera on the page, even though in the clinic it is about the heart and the blood, not about anger or that gut disease.

Though actually不過事實上 the name is a chemist's name, not a "cholera" name這個名字是化學家取的名字，不是跟cholera（霍亂）有關 it was built from Greek for bile plus "solid"它是用希臘文的「膽汁」加上「固態」組合而成 because this stuff was first found as a solid in gallstones — stones in the bile因為這種物質最早是在膽結石裡被發現的固態形式 That is why it looks like choler and cholera on the page這也是為什麼它在拼字上看起來很像choler和cholera even though in the clinic it is about the heart and the blood, not about anger or that gut disease雖然在臨床上它談的是心臟和血液，跟憤怒或那種腸胃疾病都沒有關係