Calidez humana - Frases celebres y citas.

The aim of this essay is to explain the role that every sector (family and school) plays in young people’s sex education, moreover to analyze with whom young people feel more comfortable when they talk about sex. It addresses, briefly, the history of sex education in Mexican schools, the epidemiology of adolescent pregnancy and Sexually Transmitted Infections (STIs), the functions of every.

A book is a set of sheets of paper, parchment, or similar materials that are fastened together to hinge at one side. A single sheet within a book is a leaf, and each side of a leaf is a page. Writing or images can be printed or drawn on a document's pages. An electronic image that is formatted to resemble a book on a computer screen, smartphone or e-reader device is known as an electronic book.