Life Encyclopedia is a book, and this series of popular science abstracts includes three books: Health, Health and Longevity, Medicine, Hygiene and Health Care, and Life Encyclopedia. The contents of this series are collected from more than 33 newspapers, magazines and books, most of which are collected from four newspapers: Life Digest, Beijing Youth Daily, Medical Health News and Yishou Digest. This series of books has been carefully selected, collected, classified, summarized and arranged by editors from a large number of relevant materials in newspapers and magazines for many years.