Correspondence is an important source of documentation for studying health and, therefore, the gastrointestinal symptoms of diseases. We studied the gastrointestinal disease described in the Monumenta Borgia collection, which contains documents from the 16th century, mainly letters about Francis Borgia, the last great figure of a family originally from Valencia and with universal significance.
This study questions the findings of most research claiming that teenage pregnancies are generally unwanted, unplanned and unintended. It starts with the question of why most sexually active teenagers put themselves at risk of becoming pregnant if they do not desire it. The hypothesis is that sentiments of "love" and "aspirations for marriage" are related to starting sexual activity and subsequent pregnancy. The sample is 123 school-age mothers.