Genetics of the 21st Century: Microbes Affect Disease Susceptibility, Body Weight, and Ability to Build Muscle

microbiome“We are survival machines – robot vehicles blindly programmed to preserve the selfish molecules known as genes. This is a truth which still fills me with astonishment.”

― Richard Dawkins, The Selfish Gene

We’ve all heard it… People complaining about bad genetics being the reason they can’t lose weight, build muscle, or get rid of their chronic health problems. When neither diet nor exercise seems to bring any results, it’s easy to start blaming something that is out of our control, and since we know that genes determine our predisposition to obesity, type 2 diabetes, and other disorders with a genetic component, mum and dad quickly end up getting the blame. But, while we’ve known for a long time that the human DNA we inherit from our parents shape our physiology and health, we’re now starting to understand that the microbial genes in our body could be even more important than the 23 pairs of human chromosomes in terms of determining our susceptibility to disease. We’re also learning that the microbial ecosystems in our body impact the hormonal and inflammatory mileu, and thereby our ability to lose weight and build muscle and strength.

Read more from my guest post at BretContreras.com

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  1. […] and on our body that help us adjust to environmental shifts. As we’re now learning more about this second genome, we’re starting to understand that humans are much more adaptable than what was previously […]

  2. […] and on our body that help us adjust to environmental shifts. As we’re now learning more about this second genome, we’re starting to understand that humans are much more adaptable than what was previously […]

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