There is another benefit from exercise which is not to be ignored, and that is that it gives the person a chemical sense of well being. It actually will help to emotionally boost up people who are chronically depressed and make them smile. After a good workout, especially one done outside, everything seems brighter, more positive; whatever was bothering you somehow just doesn't seem like that big of a deal now. I am not making pro-exercise propaganda. This is not a figment of the imagination. An exercising body really does make antidepressant neurochemicals called endorphins, but only after about 45 minutes to an hour of aerobic workout.
Endorphins are powerful, with painkilling and euphoric effects equal to or greater than heroin, but without any undesirable side effects. If chemists could learn to cheaply synthesize endorphins I'm sure that millions of people would want to become addicted to them. Because I make such a point of getting in my workout every day, my husband has accused me of being an endorphin junkie, and he is right! I admit it, I'm really hooked on the feeling of well being I consistently get from any sustained exercise. I defend my addiction staunchly because it is the healthiest addiction I know of.
I have also been accused of carrying exercise to extremes, and I admit to that also. For a few years I trained for Ironman triathlons. I now think doing ironman distances is immoderate and except for a few remarkable individuals with "iron" constitutions, training that hard can only lead to a form of exhaustion that is not health promoting. I have become much more sensible in my "old" age, and in recent years have limited my participation to the Olympic distance triathlons. I was on the Canadian team at the World Championship in 1992, and intend to do it again in 1995. I do not find the Olympic distance exhausting, in fact I think it is great fun and truly exhilarating. I get to see all these wonderful age group competitors from all over the world who look and feel fantastic. It does my soul good to see a group of people aging so gracefully, not buying into the popular notion that old age is inevitably disabling, depressing, and ugly. Sport brings a degree of balance to my life after spending so much time in the presence of the sick. I plan to maintain my athletic activities into old age, barring accident or other unforeseen obstacles to fitness.
To maintain basic fitness it does not matter so much what form of exercise is chosen, as long as it is not damaging to the skeletal system or connective tissues. Many people are unable to run due to foot, knee, hip, or back problems, but almost everyone can walk. Walking outside is better than inside on a treadmill, and walking hills is better than walking on flat ground. Exercise machines such as stationary bikes, cross country ski machines, and stair steppers work well for a lot of people who live in the city, especially in the winter, or for those who hate exercise. Whatever you choose to do, it is important to at least double the resting pulse for 30 minutes no less than four days a week. This is the absolute minimum required to maintain the health and function of the cardiovascular-pulmonary system. If your resting pulse is 70, you must walk, jog, ski, bike, swim or what have you, fast enough to keep the pulse at 140 beats per minute for at least 30 minutes.
I have a strong preference to exercising outside in isolated places where there is only me and the forest, or only me and the river. Running along logging roads in the hilly back country, or swimming in the green unpolluted water of a forest river is a spiritual experience for me. It is a time to meditate, to commune with nature, and to clear my mind and create new solutions. The repetitive action of running or walking or swimming, along with the regular deep breathing in clean air, with no distractions except what nature provides is truly health promoting. Sharing these activities with friends or family can also be great fun and some of the best in social interactions. It is one of my favorite ways of visiting with people. I don't expect other people to be as enthusiastic about exercise as I am, but I do hope that everyone will make an effort to be minimally fit as an ongoing part of their health program into old age.
Diet For A Long, Long Life
Some people not only want to be healthy, but they want to live in good health long past the normal life span projected by statistical tables for Homo Sapiens. Dr. Roy Walford, a well-respected medical research gerontologist who has been actively studying longevity for many years, is one of those. He has scientifically demonstrated with accepted studies that a qualitative life span up to at least 115 years of age is reasonably attainable by the average person if they start working on it no later than about 50 years of age, though earlier is much better.
Walford's principles of extending life are very simple. All you have to do is restrict your caloric intake to about 1,500 per day, and water fast two days a week. Or alternatively, reduce your caloric intake to 1,200 per day and fast only one day a week on water. And make sure that every single bit of food you do eat is packed with nutrition, every single calorie, without exception. You continue this program for the rest of your life along with moderate daily exercise and high but reasonable dosages of vitamins, minerals, and also take a few exotic food supplements. The supplement program is not particularly expensive nor extreme, Walford's supplement program is more moderate than the life extension program I recommend for all middle-aged and older people. The best foods for this type of program is a largely raw food diet (80%) with a predominance of sprouts and baby greens, some cooked vegetables, and raw nuts and seeds. And make sure you get 30 minutes of cardiovascular exercise every other day.
While Dr. Walford's focus is on caloric reduction while maintaining sufficient nutrition, most other life extensionists focus on increasing the nutrition side of the equation for health without bothering to reduce caloric intake. This approach is much easier because essentially, it involves gobbling nutritional supplements by the handfuls without requiring self-discipline, though it can get quite expensive. I'll have more to say about this approach in the next chapter, which is about vitamins.
In this book I can't explain all the aspects of prolongation of life through conscious life-style choice. Those who are interested are referred to the Bibliography.