Of course, not everyone guilty of dietetic sins goes through such sad experiences, for the naturally strong frequently escape the consequences of their rashness, particularly where they live in the rural districts and take plenty of out-door exercise. Let not such, however, flatter themselves that their disregard of hygienic laws will go unpunished. After indiscretions in eating they will all, at one time or another, have acute indigestion with diarrhoea; and how often does the previously well and hearty man after indiscretion in eating wake up with a dull headache, furred tongue, foul breath, and a general feeling of sluggishness and mental depression? Is it his liver? Our unscientific medical ancestors--at a loss to account for the state of affairs in any other way--answered in the affirmative, and, believing it was produced by a collection of bile in the liver, called the condition "biliousness." How absurd modern science has shown this assumption to be! We now know that the liver is rarely diseased, and that it furnishes its secretion, called bile, for the purpose of aiding digestion rather than hindering it, and that this substance is rarely, if ever, produced in excess. It is undigested, putrefying food in the intestinal tract that produces the trouble. Under such circumstances one usually takes a dose of calomel, which, being perhaps the most satisfactory and perfect purgative that we possess, relieves the condition promptly by getting rid of the offending material; but the drug does not act on the liver. Unfortunately ill results of quite a different and a much more serious character often follow in the wake of dietetic errors; in those who have a tendency to consumption, particularly where they overwork, this dread disease frequently makes its appearance as a consequence of bad eating and drinking. Many, if not all, of the degenerative diseases that appear in the latter half of life are produced in this way, and nothing is more certain than that the peace, happiness and longevity of mankind could be incalculably increased by the simple observance of what is known concerning proper eating and drinking. We will now consider the very important subject of the quantity and character of foods which should be taken in health, with suggestions as to those most suitable for dyspeptics. _Over-eating too Prevalent._--The majority of us take much more food than is necessary, with the result that we suffer from indigestion.