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- They says its all in your genes, but is it really?
They says its all in your genes, but is it really?
How much control do we have over our genes?
Hey There LifeSync Community!
Unlocking the Secrets of Health and Longevity
Welcome to a journey into the fascinating world of epigenetics—a realm where the choices we make can directly influence our genetic destiny. This isn't just about the genes we inherit from our parents; it's about how our lifestyle, from what we eat to how we manage stress, can alter the very way our genes behave.
But how does this apply to real life? How do our daily decisions impact our health not only today but as we age? To explore these questions, we will dive into groundbreaking research that unveils the complex dance between our genes and our environment. You'll discover why two people with identical genes—like twins—can end up with very different health outcomes based on their lifestyles.
Furthermore, we will explore a captivating study that sheds light on how age-related changes in glucose management, body weight, and fat accumulation are not just human concerns but are mirrored across different species. This research challenges long-held assumptions and offers critical insights that could reshape how we approach health and aging.
Whether you're intrigued by how your day-to-day choices can modify your genetic blueprint or curious about the broader implications of aging on metabolic health, this article promises to provide you with insights that are not only informative but also profoundly empowering. Join us as we unravel the threads of genetics, epigenetics, and metabolic health, and learn how these elements weave together to impact our quest for a vibrant, healthy life.
Beyond Genetics: The Powerful Role of Epigenetics in Our Health
For decades, the narrative of genetics has dominated discussions in science, suggesting that our DNA holds the immutable codes that shape our health, traits, and behaviors. However, the study of epigenetics is reshaping our understanding, showing us that our environment and lifestyle choices can significantly influence how our genetic blueprints are expressed. Pioneering researchers like Dr. Francis Pottenger, Dr. Cate Shanahan, and Dr. Weston Price have illuminated the profound impact that nutrition and environment have on our genetic expression. This article explores the dynamic interplay between our genetic foundation and the epigenetic factors that can alter our health landscape.
Understanding Genetics and Epigenetics
Genetics Defined: Genetics is the branch of biology concerned with the study of genes, genetic variation, and heredity in organisms. Traditionally, genetics has been viewed as the scriptwriter of our biological narrative, dictating everything from our eye color to our susceptibility to certain diseases. It involves the transmission of genetic information from parents to offspring, a process that seems to suggest a fixed destiny.
Epigenetics Defined: Epigenetics, a term that literally means "above" or "on top of" genetics, involves changes in gene activity that do not involve alterations to the genetic code itself. It is the study of how your behaviors and environment can cause changes that affect the way your genes work. Unlike genetic changes, epigenetic changes are reversible and do not change your DNA sequence, but they can change how your body reads a DNA sequence.
Contrast between Genetics and Epigenetics: While genetics provides the blueprint, epigenetics are the landscape architects that modify how much of the blueprint is read and when. This is akin to having a detailed architectural plan for a building but having the freedom to choose the materials, colors, and interior designs. In biological terms, if genetics is the hardware, then epigenetics is the software that runs it. Environmental factors such as diet, stress, and exposure to toxins can modify these settings, potentially altering gene expression in ways that can have long-lasting effects.
Epigenetics introduces a transformative concept: while we may inherit our genes, we can dynamically influence how they are expressed through our choices and behaviors. Dr. Pottenger's studies with cats, Dr. Shanahan's research into traditional diets, and Dr. Price's observations of indigenous populations underscore a crucial message: our environmental interactions, particularly our nutritional choices, play a pivotal role in our health that can transcend generations. This foundational understanding allows us to harness the power of epigenetics to foster better health outcomes, not just for ourselves but also for future generations.
Example: Pottenger's Cats—A Case Study in Epigenetics
Background: Dr. Francis Pottenger conducted an experiment from 1932 to 1942 involving approximately 900 cats over several generations. The purpose of the study was to examine the effects of diet on health across generations. Cats were fed diets that varied only in how the meat component was prepared: some cats were fed raw meat and raw milk, while others were fed the same types of meat and milk, but cooked.
Observations: The cats on the raw meat and milk diet maintained excellent health generation after generation. They had healthy fur, few diseases, and good skeletal structure, and reproduced successfully without intervention. Their offspring were also healthy and thrived.
In contrast, the cats fed cooked meat and pasteurized milk suffered numerous health problems: dental issues, skeletal deformities, poor vision, heart problems, kidney and liver issues, and neurological problems. Their fertility also declined over generations, with the third generation of cats often being infertile. Remarkably, when the diet was corrected back to raw meat and milk, the following generations slowly regained health and reproductive ability, demonstrating that the negative effects were not permanently encoded in the DNA.
Epigenetic Implications: This study is a classic example of how nutrition can affect gene expression across generations. The differences in health and development were not due to changes in the cats’ DNA sequences. Instead, they were due to changes in how their genes were expressed, which were influenced by the nutrients available in their diet. These changes in gene expression could then be passed on to offspring, showing an epigenetic transmission of health traits that were directly linked to environmental (dietary) factors.
Pottenger's cats provide a clear, real-world illustration of epigenetics. The study underscores the potential of diet to influence genetic expression profoundly and heritably, without altering the underlying genetic code. It also highlights the reversible nature of epigenetic changes, as the health improvements in subsequent generations demonstrate that negative epigenetic modifications are not necessarily permanent if the environmental conditions (in this case, diet) are improved.
You might be thinking; Great but I am not having any more kids! (or cats). Let me give you another example. Epigenetics is not just about how your genes are passed down. It’s about your health and how you age.
Imagine a pair of identical twins, genetically the same down to every strand of DNA. Despite their identical genetic makeup, their lives and health trajectories could differ dramatically based on their lifestyle choices and environments.
One twin, let's call him Alex, adopts a lifestyle centered on wellness. He nourishes his body with a balanced, nutritious diet, engages in regular physical activity, ensures ample rest and quality sleep, and manages stress through mindfulness and relaxation techniques.
The other twin, Ben, leads a starkly different life. His diet is predominantly fast food, high in processed ingredients and sugars. Exercise is sporadic or non-existent, stress levels are perpetually high, and sleep is often compromised or inadequate.
Initially, these differences might not be apparent. However, as they age, the impact of their lifestyles becomes increasingly visible. Alex, with his healthier choices, is likely to enjoy robust health, showing fewer signs of aging and maintaining a more vibrant, energetic presence. Ben, on the other hand, may face a host of health issues, appear older than his age, and experience lower energy levels and vitality.
This divergence is not just a matter of luck or circumstance but a direct result of how their epigenetics are influenced by their choices. While their DNA—their genetic code—is identical, the expression of these genes varies significantly between them. Epigenetics, influenced by factors like diet, physical activity, stress, and sleep, dictates which genes are turned on or off. Thus, even though all our genes are present in our DNA, it's our lifestyle that determines which parts of this genetic blueprint are activated and which remain dormant.
In the coming sections, we'll explore how specific lifestyle choices can modify epigenetic expressions and how we might leverage this knowledge to improve overall health and well-being.
News
There was a recent study that you may find interesting. The study found that there is a correlation between fasting blood glucose and longevity. When most people talk about blood sugar levels, they only think of the disease state. They think of diabetes 1 or 2 (lifestyle) or even sometimes 3 (dementia/Alzheimer’s), but they rarely think of it in terms of general health and longevity. This is something we have control over and has a big impact on our health. The link to the study is highlighted above. This is basically what the abstract from the study says:
As we age, our bodies undergo significant changes, particularly in how we process glucose (a type of sugar we get from foods), and how we manage our body weight and fat. These changes are important because they can affect our overall health and how long we live. However, scientists have been unsure whether the same patterns seen in humans also appear in animals like mice and monkeys, which often serve as models for studying human health.
A recent study set out to compare these age-related changes in mice, nonhuman primates (like monkeys), and humans to see if they followed similar patterns over their lifespans. The researchers looked at three key indicators: fasting blood glucose (sugar levels after a period without eating), body weight, and fat mass.
What they found was quite interesting: while weight and fat trends were similar across all three species as they aged, the patterns for blood glucose were different. In mice, blood glucose levels actually decreased later in life, but in monkeys and humans, these levels tended to rise as they got older. This is an important discovery because higher glucose levels were linked to higher risk of death in monkeys and humans, but not in mice(possibly because of much higher metabolism.)
There are many theories as to why this might happen as we age. The study above only showed that high blood glucose showed an increase in mortality. Fortunately, we have some control over this and we will get into it more in the next article.
Just a personal note
I know a couple of people wanted to know when I did this so I thought I would put this in the newsletter. Today starts my extended fast. The longest I have done so far was 10 days but this one will be water only. The goal is 30 days. Will I be able to do it? Place your bets! I have written before about stem cells. A fast over 3 days stimulates stem cell activity. Also due to my own bad choices, I believe I have a fatty liver that I wanted to address. I was doing it through diet alone and didn’t use any supplements. it was working but was very slow. All of this and the fact that I wanted to give my body a reset, is why I am doing this. A couple of people have said they wanted to join, so I am posting this here. I will update you as we go along, at the end of the next few newsletters. If you choose to join, please check with your doctor first and keep in mind that problems, major problems, can arise when you start to eat again. it can be quite serious so don’t go into it lightly. Email me if you have questions. Fasting can do amazing things, but precautions and adjustments need to be taken. Especially when starting to eat again.
Thank you for reading
Thank You for Being a Valuable Part of Our Journey
As we reach the end of this edition, I want to extend a heartfelt thank you for your time and engagement. Our community is the heartbeat of this endeavor, and your involvement is what makes it thrive. If you found value in what you've read today, I encourage you to share it with friends and family who might benefit as well. Your recommendation is more than just a gesture of support; it's a ripple that extends the reach of our community's knowledge and connection. Moreover, sharing on social media helps us grow and welcome more like-minded individuals into our fold. Every share, every conversation you initiate, brings us closer to a collective goal of enlightenment and empowerment. Let's continue to grow together, sharing insights and forging a community that's not just informed but also interconnected. Thank you for being an essential part of this journey, and until next time, stay curious and connected.