Excerpt from A Key to the Attainment of the Full Term of Life: Shewing the Causes That Bring Human Existence to a Close Sooner Than Nature Intended Those only destined for the medical profession have hitherto adequately investigated the subject of human physiology. To a certain extent it should be studied as a branch of liberal learning in the higher schools by youth not intended for the medical profession. The lower classes of society, unaccustomed as they are to self restraint, are quite as much, or more, in need of a slight knowledge of their interior mechanism, and the various phenomena which ensue, and they ought to be indoctrinated as to the care of their health. The Author aims not so much at teaching men what they do not know, as at reminding them of that which nature teaches them they ought both to know and to practise. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.