具体描述
Everything you could possibly want to know about the "crown jewels", but were afraid to ask, including why men so fond of their most prized possession, how it works and what to do when it doesn't. Although they might be quick with jokes, men are often reluctant to discuss their penis and might not have accurate information about it. This is an accurate but accessible and entertaining manual written for both men and women. The authors explain everything from what it's called, to the anatomy and physiology of the penis: size, shape, function, circumcision, hygiene, hormones and contraception. They explain what can go wrong - sexually transmitted diseases, infertility, premature ejaculation, impotence and cancer - and provide useful information on how to avoid and deal with these nasties. They uncover the myths of male sexuality, and poke fun at the names we call it and the things it does. The book presents the facts in a manner easily accessible and relevant to all ages, and answers questions men and women are often too embarrassed to ask.
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一本科普能写这么无趣！但第11章还行。
评分笔记：1、健康成年男子每晚40%的睡眠时间处于勃起状态，每次30分钟；2、阉人寿命长于普通人；3、青春期后阉割的阉人仍可保有性能力，于古罗马时为贵妇所喜。
评分笔记：1、健康成年男子每晚40%的睡眠时间处于勃起状态，每次30分钟；2、阉人寿命长于普通人；3、青春期后阉割的阉人仍可保有性能力，于古罗马时为贵妇所喜。
评分一本科普能写这么无趣！但第11章还行。
评分一本科普能写这么无趣！但第11章还行。
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