Since ancient times, treatises on health have been frequently read, including a very specific aspect of the subject, the health of the people who study it. As for the bibliography of this particular aspect, it is worth remembering the book by David Tissot, Of the santé des gens de lettres, which we read in the Lausanne edition of 1775. It is clear from the date of publication that Tissot's advice had to be welcomed in an era, the Age of Enlightenment, in which men and women of letters and study proliferated. Since study is a sedentary activity, Tissot made a series of recommendations in his book, some very sensible, others very fanciful, in the absence of a more perfect development of the health sciences.