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See the Truth About Who You Really Are as an Investor

January 13, 2020 By E.J. Smith - Your Survival Guy

By garmoncheg @ Shutterstock.com

You know how powerful the mind is—the power of mind over matter. That’s why I revisited this article in the New York Times: “Mind May Trump DNA in Exercise and Eating Habits:”

If you tell people they have a genetic predisposition to a low capacity for exercise or a tendency to overeat, explains the article, their bodies respond accordingly.

When it comes to investing, your mind makes you feel certain ways about the stock market which can lead to some big mistakes in your asset allocation.

If you take the time to understand how you felt in brutal markets like those of 2000 and 2008, you’ll begin to see the truth about who you really are as an investor.

Gretchen Reynolds reports in The New York Times (abridged):

DNA testing is trendy at the moment. Over-the-counter and prescription testing services promise to tell us about our health inheritance, including whether we are prone to weight gain, will respond well to exercise, can metabolize various foods efficiently, and face heightened — or reduced — risks for a broad range of medical conditions.

The accuracy of many of these claims, however, remains in doubt. Most scientists who study genetics consider the effects of many particular gene variants on health to be generally slight and still poorly understood.

But even less is known about the psychological impacts of learning that you might have a high or low genetic risk for health and fitness problems and how our subsequent attitudes might play out in our physiology.

So, for the new study, which was published in December in Nature Human Behavior, researchers at Stanford University set out to fool a large group of men and women about their genetics, at least temporarily.

They started by advertising locally for participants interested in learning which diets or exercise programs best suited them, based on their genotypes. More than 200 healthy men and women responded and were accepted into the study.

Each provided a saliva sample for genotyping, after which the experiment began, although its actual intent remained shrouded from the participants.

The men and women were divided into two groups. One completed a treadmill test, during which they ran for as long as possible while wearing a mask that measured their oxygen uptake and lung capacity and occasionally telling the researchers how they felt.

The other group focused on diets and eating behavior. Its participants were given a 480-calorie liquid meal and told to finish it, then describe how full they felt, while researchers drew blood to test the levels of certain hormones that are known to be involved in making people feel satiated or not.

Later, on a separate visit to the lab, the volunteers learned their supposed genetic test results. Some of those in the exercise group were told that they had a particular gene variant that makes people likely to have low endurance and find prolonged exercise difficult. This gene variant exists and is associated with a low response to endurance training. But most of the participants who were told that they carried this gene type in fact did not.

Similarly, the researchers told some of the people in the diet group, incorrectly, that they carried a gene variant that could reduce how full they felt and nudge them to overeat, or that their variant of the gene should make them feel full quickly and reduce their risk for obesity.

Afterward, the men and women repeated the treadmill or the meal session.

The results of each session were telling. Those people in the exercise group who had been told — almost always inaccurately — that their genes made them unlikely to respond well to exercise tired more quickly now than they had before, and their oxygen uptake and lung capacity were significantly lower.

In the diet group, those people who erroneously thought they had the protective variant of the appetite gene felt fuller after drinking the shake than before and their bodies produced more of a hormone that increases satiety.

In both cases, people’s psychological beliefs about their genetic risks had altered their physiological responses to the testing.

Perhaps most interesting, the researchers then compared the physical effects of having a gene variant with believing, incorrectly, that you did.

To do so, they tallied the mathematical extent to which, in the first round of testing — before people knew anything about their genetic risks — exercisers’ oxygen uptake and lung capacity were lower if they carried the worrisome gene variant, and their feelings of fullness and appetite hormones were greater if they had the desirable appetite-related variant.

In both cases, the variant had the expected impact on people’s bodies, although the effect was small.

In fact, it turned out that the physical impacts on endurance and fullness were often more substantial among the volunteers who believed they had the gene variant and did not than among those who actually harbored it.

These findings suggest that “people tend to attribute more power to genes than they probably should,” says Bradley Turnwald, a doctoral student at Stanford who conducted the study with the senior author, Alia Crum, and others.

Our mind-sets, or mental expectations about ourselves, seem to play an equal or even greater role than does our DNA in shaping some of our bodies’ reactions to diet and exercise, Mr. Turnwald says.

But far more research is needed, he continues, to understand the interplay of genes, beliefs and health, and eventually help people better interpret any results they receive from genetic health tests, Mr. Turnwald says.

As for the volunteers in this study, they were debriefed at the end and provided with their actual genetic results, Mr. Turnwald says.

Read more here.

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E.J. Smith - Your Survival Guy

E.J. Smith is Founder of YourSurvivalGuy.com, Managing Director at Richard C. Young & Co., Ltd., a Managing Editor of Richardcyoung.com, and Editor-in-Chief of Youngresearch.com. His focus at all times is on preparing clients and readers for “Times Like These.” E.J. graduated from Babson College in Wellesley, Massachusetts, with a B.S. in finance and investments. In 1995, E.J. began his investment career at Fidelity Investments in Boston before joining Richard C. Young & Co., Ltd. in 1998. E.J. has trained at Sig Sauer Academy in Epping, NH. His first drum set was a 5-piece Slingerland with Zildjians. He grew-up worshiping Neil Peart (RIP) of the band Rush, and loves the song Tom Sawyer—the name of his family’s boat, a Grady-White Canyon 306. He grew up in Mattapoisett, MA, an idyllic small town on the water near Cape Cod. He spends time in Newport, RI and Bartlett, NH—both as far away from Wall Street as one could mentally get. The Newport office is on a quiet, tree lined street not far from the harbor and the log cabin in Bartlett, NH, the “Live Free or Die” state, sits on the edge of the White Mountain National Forest. He enjoys spending time in Key West and Paris. Please get in touch with E.J. at ejsmith@yoursurvivalguy.com To sign up for my free monthly Survive & Thrive letter, click here.
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