Hop on the train that travels towards health Communicable diseases, which used to be the scourge of mankind -- the black plague, cholera, diphtheria, typhoid, scarlet fever, etc. -- have all but been eradicated. But another phalanx of diseases has quietly moved in to take their place, lifestyle diseases, chief among them circulatory problems and cancer. Globally the two groups account for nearly three-quarters of all deaths in the so-called developed countries and for nearly half of them in developing countries. Here are a few more health problems that deserve to be classed as lifestyle diseases: diabetes, prostatitis, arthritis, ulcers and candidiasis. Less than two decades ago people who contended that most of the diseases that plague humanity result from faulty living were ridiculed as quacks. But now the truth won't be swept under the rug any more. The World Health Organization itself has come out very strongly in support of a healthy lifestyle to keep disease at bay. And people are beginning to be aware of this basic truth and to understand what they could and should do to optimize their chances of growing old without running the risk of being laid low by lifestyle diseases. And yet a strange urge to self-destruct seems to keep them from translating this understanding into action. While there seem to be certain factors that increase the risk of circulatory problems, among them lack of exercise and a diet rich in saturated fats, and other factors that increase the risk of cancer, among them smoking and stress, it is probably true that measures which protect against one group of diseases also protect against the other. The human organism is an indivisible whole. What's bad for the whole is bad for the parts and what's bad for some parts is ultimately bad for all parts. A truly healthful lifestyle benefits all parts and protects all parts from the ravages of disease. Lets make a bit of an inventory of measures -- some of them "do's" and some of them "do not's" -- that make up a healthful lifestyle. Good nutrition, adequate exercise and avoiding avoidable toxins are probably the most important ones. Good nutrition reduced to simplest terms means none of the non-foods such as soft drinks, imitation fruit drinks, candy and other sweets; it means a diet that eschews highly refined and/or processed foods such as white flour and white-flour products, white sugar and foods containing white sugar, and fatty foods; it means a diet that leans heavily on fresh fruit and vegetables. Meat, yes, but in moderation, and lean meat rather than fat meat; fish and chicken rather than beef and mutton; meat that has been boiled or steamed rather than fried or grilled. Good nutrition means eating slowly and chewing your food well. And it means not drinking with your meals. Drink half an hour before you eat and don't drink again till half an hour to an hour after you eat, according whether you have a light or a heavy meal. But do not drink while you eat, not even water. Adequate exercise means, to begin with, aerobic exercise; that is, exercise which involves the whole body or at least large parts of the body. Jogging, swimming, bicycling, a brisk game of tennis or even just a brisk walk -- these are forms of exercise that qualify as aerobic. Adequate exercise means moreover regular exercise sustained over moderately long periods of time. Four fifteen-minute jogging sessions a week, five half-hour sessions a week of brisk walking, a vigorous half-hour swim every other day -- anyone of these could be considered adequate exercise. The man who jogs five miles once in a blue moon probably does himself more harm than good in that he demands vigorous effort of his heart without ever giving it a chance to get into good shape. Avoiding avoidable toxins means above all abstaining from alcohol and nicotine, but it also means staying away from coffee and tea. The man who indulges in a drag of the shisha every once in a while can hope to escape the health-destroying effects of nicotine; he who smokes a pack of cigarettes a day cannot. A cup of tea or coffee as an occasional treat may be defensible; the habit of several daily cups of either is not. Most medical drugs fall into the category of avoidable toxins. It is grimly ironic that the truly healthy don't consume drugs while those whose health has broken down consume them liberally. There is virtually no medical drug that doesn't have undesirable side effects. A healthy organism would find it hard to cope with them. An organism weakened by disease would be weakened further. Drugs should be considered a last resort, when all else has failed. Chances are that, if you adopt a reasonably healthy lifestyle, you won't need them in the first place. I am looking at an article in a past issue of the "National Geographic" (January 1972), which is about three pockets of healthy people discovered by National Geographic reporters -- a plateau in the Andes, the area around the Caspian See in southern Russia and Hunzaland in north- eastern Pakistan. The article shows pictures of centenarians still healthy and active. It concludes that the secret of their vigorous health is nothing more than a healthy lifestyle. Would you not like to be in the number of those who live to a hundred and stay healthy all the way? If so, place your bets on a healthy lifestyle. While a healthy lifestyle is no absolute guaranty that you will get there, it enhances your chances of doing so appreciably. Fe Leonor