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Is Fitness All in the Genes?
A new study on the genetics of fitness is trying to find out if the body's receptivity to exercise is genetic or not.
The researchers have looked at thousands of individual segments of DNA, which are called single-nucleotide polymorphisms (SNPs), and identified a particular gene that responds to exercise by a measurement called maximum oxygen capacity.
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DNA-testing is done by millions of people all over the world to analyze their DNA and find out where they originate.
Targeted marketing for DNA home-testing kits shows models under the banne...
Some problems arise regarding DNA home tests about what happens after the results of land.
Many who have done a DNA home test begin to question their family heritage and wonder if they might have been misled. However, taking DNA tests from different companies reveal wildly varying results. There are a few reasons for this:
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We're all different. If we are all on the same weight-loss diet, there will be various outcomes. Some people will lose a lot, some will lose a little, and a few will even gain weight.
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Scientists are continually finding links between genetics and nutrition. Many of us have a gene called FTO that makes us more likely to be overweight. You can get a genetic test to tell which variant of the FTO gene you happen to have.
However, scientists who study the genetics of nutrition think it’s premature to base nutritional advice on your DNA. That FTO gene, for example, has only been shown to make a few pounds’ difference in body weight.
The coded messages of your DNA are billions of letters (nucleotides) long. Personalized nutrition companies only care about a few of your DNA letters and can tell you which "variant" you have at each of those locations (known as SNPs) along your DNA strands.
Genetic testing companies can learn what SNP variants you have by supplying them with a vial of spit.
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Humans evolved on a diet very different from today's eating habits. To be healthier, leaner, stronger and fitter, we must re-think our diet and remove some of the food groups we ...