REALAGE #2
by Dr. Michael Roizen
Getting Younger-Just the Facts
IT'S EASIER THAN YOU THINK
As a doctor, I have often felt I was fighting an uphill battle. My job is to cure people after they are already sick. But preventing illness in the first place is always the best cure. Practicing my specialty of cardiovascular anesthesiology has meant that I have spent much of my working life with patients who are among the sickest of the sick, people who need bypass surgery or emergency operations to fix potentially fatal aneurysms. After spending so much time in the operating room with patients who were so severely sick, I was frustrated by not being able to do more for them. I was grateful that I really could save lives, but at the same time, I was mad as heck. So many of these patients were sick because they had mistreated their bodies over time. Moreover, every single one of them knew better. They knew that they should exercise more, eat healthier foods, and take care of themselves, but they just weren't doing it. That seemed to me a true tragedy, not to mention a national health care crisis. Why were so many people—-smart, educated, thoughtful people—not paying attention to the reports of studies that correlated good health behaviors with long, healthy lives? It would have been easy to blame it on the patients. But it wasn't their fault. Clearly, the medical community was failing to communicate its message effectively.
In my internal medicine practice and my anesthesia preoperative clinic, I told my patients again and again how they could live healthier. I told them how they could lengthen—and strengthen—their lives and how they could increase the quantity and the quality of their years. But the tide of patients coming into my office and into the operating room with entirely preventable illnesses did not stem. I felt as if all my talk was for nothing. Why did they persist in habits that were harmful to their health, even though they knew better? What could I do—-what could all doctors do—to explain health better? Good health is an attainable goal, but my patients weren't listening.
REALAGE:
The Beginning of an Idea
One day, a friend said to me, "Health is so confusing. One day the papers are telling you to do one thing, and the next day they're telling you to do the opposite. There's just so much information. I don't know what to do with it all." I empathized, but I didn't know exactly how to change things. How could people measure one alternative against another?
When another friend, Simon Z., developed a severe illness, it all came together. For some reason, stepping out of my role as a doctor and into my role as a friend made the idea flash in my head: Health is like money. It has an exchange value. Health decisions and behavioral choices that you make today are capital toward living younger tomorrow. What we were missing was a common currency for health.
Simon, who was forty-nine, was afflicted with severe arterial disease. He had a terrible circulatory problem that made it nearly impossible for him to walk more than a quarter of a block without terrible pain, and he needed a major operation. His lifelong smoking habit wasn't helping any. Even though he was relatively young, his body was in the condition of someone much older. I was afraid that he might not be my friend for much longer.
Simon was a tough cookie—and an even tougher patient. A self-made man, he had a drive and determination that was hard to match. He had worked hard for everything he had ever gotten in his life, and, with a wonderful family, good friends, and a booming career, his was an American success story. Yet he was a heart attack away from losing it all. As a doctor, I wanted to cure him. As a friend, I didn't want to lose him. For all Simon's attention to detail in his job, family, and friendships, he had overlooked the one thing that made it all possible: himself.
Telling him to quit smoking didn't work. (Quite literally, I called him every single day for years to ask him if he had quit yet. The answer was always "no.")
"Simon," I said one day when he was in for a checkup, "how old are you?"
"Mike, please," he grumbled. "You now I'm forty-nine."
"Simon, this isn't a joke," I replied. "How old are you really?'
"What are you getting at?" he said, eyeing me suspiciously.
"Did you know that all that smoking has made you older?" I asked him. "Eight years older. Right now, you may be forty-nine. But your body is as old as someone who is fifty-seven, maybe more. For all practical purposes, your age is fifty-seven."
"I can't be fifty-seven," he said.
"Why not?" I asked.
"Because no man in my family has ever lived to the age of fifty-eight."
The message hit home. Simon quit smoking. He began exercising and eating right. He reduced his RealAge and began celebrating "year-younger" parties, rather than his usual "one-more-year-over-the-hill" birthday parties. Over time, he became younger.
Fundamental to economics is the concept of "net present value." Net present value is used by economists to determine the current value of investments that have future payoffs. The RealAge concept allows us to calculate the "value of different types of health behaviors and choices. In biologic terms, the difference between your calendar age and your RealAge is a calculation of the net present value of your health behaviors; it is the estimate of what age you are physiologically when compared with the rest of the population. For example, when I say someone's RealAge is forty-five compared with his or her chronological age of fifty, it means that the person has the health profile of the average forty-five-year-old. In terms of age, his or her net present value is five years younger. Each behavior has a net present value and alters your RealAge by a specific number of years. Instead of considering health decisions as something that will pay off thirty years down the road, you will be able to see just how each choice is paying off in the present
Has this been demonstrated? Is it real? Yes. The rest of the book gives you the net present value, or RealAge change, for each choice. It also examines how and why that choice affects you.
A Question of Age: What Does It Mean to Get Old?
No matter who you are, no matter what else happens in your life, one thing is guaranteed: You will get older—each and every day. It's one of life's promises, and there's no stopping it.
At least, not until now. Now we know that slowing the process of aging, reversing aging, is the best thing we can do to promote health. "Younger" and "healthier" are almost always one and the same. Most of the major diseases we confront—cancer, arthritis, heart disease—rarely occur until our bodies begin to show the signs of aging. Indeed, these diseases are, far too often, the hallmarks of aging, their onset defining the moment when we first feel old.
Surprisingly, no one knows why we age. Even though aging is one of the most clearly visible biological processes-—a process that's been written about as long as anyone has written about biology—there is no good scientific explanation for aging, except to say that our bodies were designed to grow older. Aging is built right into us, and no one can say exactly why. Scientists have at least seven major theories about why we age, and all of them have some credibility.
Some scientists believe that our bodies are programmed to die—-that our genes program our cells to divide a certain number of times and that once division has reached that maximum number, our bodies begin to fail. This is known as the telomere theory. (Telomeres are genetic elements that control the number of allowable cell divisions.)
Others argue that there is a general degradation of neuroendocrine stimuli—that is, the neurologic and hormonal systems that regulate the organism finally wear out, making us more susceptible to a variety of diseases.
A third hypothesis is the "wear-and-tear" theory, that living itself makes us old.
A fourth theory is that our bodies eventually build up so many toxins and other waste products that our systems begin to shut down. In a further elaboration of this hypothesis, many scientists believe that this waste buildup can even affect the structure of our genes.
You may know this fifth theory as the free-radical theory of aging: Our bodies build up free radical "oxidants" that damage our organs and our DNA, causing us to age.
A corollary to this theory is the glucose toxicity theory, which also has to do with waste buildup in our bodies.
The final theory of aging derives from the law of entropy: In the universe there is a continual movement from order to disorder, and in our bodies, that movement is marked as aging.
Although no one knows exactly why we age, we do know, at least in part, what ages. Aging is not one thing but many things. And that's the key to RealAge. Aging is the catchall term for all sorts of processes-—everything from getting wrinkles to wearing out our hearts. Aging doesn't happen as some mysterious metaphysical phenomenon. Aging happens in the particulars. That is, your arteries get clogged. Arthritis flares up. Your parts start to wear down, and you don't heal as quickly as you used to.
With RealAge, we go to the source; we get down to the details. We all know people who look younger than their age. And we all know people who look like they're older. The question is, How can you turn yourself into one of those people who look, feel, and—in physiologic terms—are younger than their age?
First, stop thinking about health as the prevention of disease and start thinking about it as the prevention of aging. The chance of any of us being afflicted by any one disease in any one year is pretty slim. We read that 3 in 1,000 women will get a certain kind of cancer or that 2 in 100 men will die from a specific variety of stroke. These kinds of data aren't enough to convince us that we should really eat that salad instead of a burger and fries. These events seem too remote.
However, eating that hamburger will make you older tomorrow than if you ate that salad today. And you will be younger tomorrow if you exercise today. The better condition you are in—that is, the younger you stay—the better prepared you will be to fight the factors that age you. When you take care of your body, time slows down. You will have more time—time to be what you want to be and to do what you want to do. By quantifying how different behaviors affect the rate of aging, RealAge lets you understand the relative value of your health choices.
Untangling Aging:
Behavior, Genetics, and
the Aging Process
As recently as twenty years ago, doctors largely believed that as soon as we understood genetics, we would solve many of the basic medical problems that eluded us. The overwhelming belief was that youth, health, and longevity were determined from birth and that there was nothing to be done about it. "It's all in the genes you're born with" was the word of the day. Almost everyone, including the scientific community, believed that a person's life span was largely a matter of fate.
For diseases as diverse as diabetes, Alzheimer's, many cancers, and cardiovascular disease, we've long known, that genetic components are involved in many cases. Some of us are more prone to weight gain, and some of us are more prone to high cholesterol. Those tendencies can increase the likelihood of certain kinds of diseases and aging. Surprisingly, the more scientists have learned about genetics, the more they have learned just how much the environment, and our interactions with it, matter. We largely control how our genes affect us. We all have the genes we were born with, but how we age is primarily up to us.
Despite commonly held beliefs that aging is mostly out of your control, inherited genetics account for less than 30 percent of all aging effects, and the importance of genetic inheritance matters less and less the older your calendar age. By the age of eighty, behavioral choices account almost entirely for a person's overall health and longevity. People who are still able to live young even when their calendar age is old weren't necessarily born with "good" genes nearly so much as they have made "good" choices. They exercise, eat lots of fruits and vegetables, keep their minds engaged, and do many of the things that this book advocates to keep themselves young.
Although we tend to imbue our genes with mystery, when it comes right down to it, genes direct our bodies to make proteins. They provide information about what proteins our cells should and shouldn't produce, how much, and when. The fact that you made it into the world at all means that all your essential genes are working just fine. To develop from an egg to a fetus requires incredible genetic coordination. Simply being born means that everything pretty much went right. Since most people with severe genetic illnesses. suffer in childhood, growing up to adulthood means that even more went right. For the most part, when we discuss aging and genetics, we are talking about subtle-differences. (For further information on genetics and aging, see Chapter 5 on cancer genetics and Chapter 12 on evaluating hereditary risks.).
Separating biology and behavior is difficult, if not impossible: Children inherit not just genes from their parents but also behaviors. Those behaviors can have biologic effects, including the rate at which the children age. For example, children who eat a lot of saturated fats when they are young are more likely to die of arterial disease when they get old (or, as it may be, not so old). The behaviors learned and ingrained in youth can affect your whole life, including the rate at which you age.
Cardiovascular disease provides an excellent example of the way biologic predispositions and social behaviors interrelate. Some people are biologically predisposed to the early onset of arterial aging. They have inherited a tendency toward high blood pressure, high cholesterol, or weight gain. Others are culturally predisposed to the disease because they are far more likely to develop such habits as eating foods high in saturated fat that can accelerate, arterial aging. Finally, we know that there is often, if not usually, a combination of both: The bad habits interact with the biologic predisposition, and cardiovascular aging is accelerated.
By starting with good behaviors, you live as long—and as young—as your genes will allow.
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TO BE CONTINUED
THE ABOVE WORDS "The behaviors learned and ingrained in youth can effect your whole life, including the rate at which you age" IS SO VERY TRUE. I'VE PROVED IT! MY DAD ENCOURAGED ME AS A YOUNG TEENAGER TO SEND FOR THE "HEALTH AND STRENGTH" COURSE OF CHARLES ATLAS. IT HAD A PROFOUND EFFECT ON MY PHYSICAL LIFE....A WAY OF LIVING IN DIET, EXERCISE, PHYSICAL LIVING, EVEN THINKING, THAT I'VE STAYED WITH ALL MY LIFE, AT LEAST IN THE BASICS. AS A TEEN UP TO AGE 18, I DID AN HOUR A DAY OF CHARLES ATLAS EXERCISES. OF COURSE THAT WAS NOT POSSIBLE INTO ADULT LIFE WITH ADULT RESPONSIBILITIES [never wanting to be a Mr. Universe]. BUT A BASIC CHARLES ATLAS LIFE I HAVE MAINTAINED. AND IT HAS PAYED OFF IN BEING YOUNG!
TOGETHER WITH USING CREAM [like Nivea cream] ON MY FACE SINCE A TEEN, AND FOLLOWING A BASIC ATLAS HEALTH LIFE, PEOPLE THINK I'M 50 AND NOT 71.
IT IS TRUE: YOU CAN SLOW DOWN THE AGING PROCESS..... I'VE PROVED IT!!
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