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  • Writer's pictureKaren Meisels

What Causes Aging? Let’s Discover the 12 Biological Processes that Age Our Bodies and How to Slow These Processes. 

 The big question on everyone’s mind is: What causes aging, and what can we do to slow (or reverse!) the aging process? 


We are living in an era when billionaires are spending millions of dollars to stop the clock on aging - a battle that may seem hopeless to most people. But, the more we understand about what is causing our cells and bodies to age, the more empowered we are to make changes in our lives that can potentially slow or reverse the impact of advancing years.


A woman who is aging, riding a bike on a beautiful sunny day, living her best life through healthy lifestyle choices

The Causes of Aging: Understanding the 12 Hallmarks 

Having a deep understanding of the 12 hallmarks of aging can greatly impact longevity, each representing a core biological process that contributes to the aging process. Unpacking these in a meaningful way provides critical insights into how we might extend health span, ensure wellness, and perhaps delay the aging process itself.


1. Genomic Instability

As we age, DNA damage accumulates, leading to mutations and cellular dysfunction. This is largely due to environmental factors and the natural metabolic processes that can introduce errors into our DNA. 


2. Telomere Attrition

Each time a cell divides, the telomeres - protective caps at the ends of each chromosome - shorten. Eventually, this shortening causes cells to age and cease dividing, leading to various aging manifestations. Think of this like the plastic tips of a shoelace becoming frayed or damaged.


3. Epigenetic Alterations

Changes in gene expression that do not involve alterations to the underlying DNA sequence can affect cellular function and aging. These changes are influenced positively or negatively by lifestyle factors such as diet, stress, and exposure to toxins.


4. Loss of Proteostasis

With age, the body becomes less efficient at protein folding and degradation, leading to the accumulation of dysfunctional proteins that can contribute to neurodegenerative diseases and other age-related conditions.


5. Deregulated Nutrient Sensing

Aging disrupts the pathways that cells use to sense and respond to nutrients, affecting metabolic health and increasing susceptibility to diseases like diabetes. As you age, your diet may need adjustments to meet changing nutritional needs. 


6. Mitochondrial Dysfunction

Mitochondria are the energy factories of our cells, and their function declines with age. This results in reduced energy production and increased oxidative stress, contributing to the aging process.


7. Cellular Senescence

Senescent cells are those that have stopped dividing but do not die. They accumulate in tissues, secreting inflammatory factors that lead to tissue dysfunction and aging symptoms.


8. Stem Cell Exhaustion

As we age, the regenerative capacity of stem cells diminishes, impacting the body's ability to repair tissue and maintain organ function.


9. Altered Intercellular Communication

Aging affects the communication between cells, leading to increased inflammation and disruption of tissue homeostasis.


10. Inflammation

Chronic, low-grade inflammation increases with age and is a significant contributor to the progression of nearly every major age-related disease.


11. Autophagy Impairment

Autophagy, the process by which cells remove and recycle damaged components, declines with age, leading to the accumulation of cellular debris and impaired cellular function.


12. Adaptation to Stress

The ability of cells to respond to stress deteriorates with age, affecting their function and survival.


closeup of telomere attrition
Telomere Attrition

An Epigenetic-Based Nutrition Strategy


Epigenetics is the science of how our behaviors and environment can cause changes that affect the way our genes work. Unlike genetic changes, epigenetic changes are reversible and do not change our DNA sequence, but rather, they can switch genes on or off, influencing gene expression. This intricate process allows for a dynamic response to environmental changes and lifestyle factors including diet, stress, physical activity, and exposure to toxins.


Addressing these hallmarks face-to-face with an epigenetic-based nutrition strategy offers a compelling approach to aging. Modifying lifestyle and dietary habits to influence epigenetic mechanisms—such as DNA methylation and histone modification—can promote a healthier, more youthful gene expression profile.


The most powerful way to impact aging and our epigenetic profile directly is through a healthy diet, nutrition, and lifestyle choices. Nutrients from our diet can modify epigenetic marks to promote health and disease prevention. For example, foods rich in folate, antioxidants, and polyphenols can encourage gene expressions that support longevity and reduce the risk of chronic diseases. Conversely, poor dietary choices, lack of physical activity, and negative environmental exposures can lead to epigenetic changes that speed up aging and increase susceptibility to diseases. 


Understanding epigenetics allows us to create personalized nutrition and lifestyle interventions, so we can alter specific habits to nurture our genetic potential for a longer, healthier life.


Avocados loaded with tomatoes and feta for a healthy snack
Healthy Eating to Influence Epigenetics

Key aspects of an epigenetic-based approach include:


Enhancing DNA repair and maintaining genomic stability through nutrients that support cellular repair mechanisms.


Supporting telomere maintenance to extend cell lifespan, using agents that can influence telomerase activity.


Modulating gene expression favorably with foods rich in folate and polyphenols.

Improving mitochondrial function with nutrients like CoQ10 and omega-3 fatty acids.


Encouraging healthy protein turnover and autophagy to prevent the buildup of toxic proteins in cells.


Reducing inflammation and cellular senescence through a diet rich in anti-inflammatory nutrients and antioxidants.


Incorporating these dietary strategies, along with lifestyle changes such as regular physical activity, stress management, and adequate sleep, are integral to promoting longevity and reducing the impact of the biological processes that contribute to aging.



A Holistic Approach to Personalized Wellness

The power of an epigenetic-based nutrition strategy involves a holistic approach, looking beyond the basics of calorie counting or nutrient tracking. It involves a deep dive into how our environment, lifestyle, and dietary choices interact with our genes. As we understand more about the epigenetic influences on aging, we can apply specific interventions that not only extend lifespan but also enhance life quality. The aging process may be inevitable, but it does not need to be a descent into decline. It can be a modifiable journey towards joy, vitality and longevity.


How Advanced Nutritional Coaching Can Help Your Optimize Your Health and Slow Aging


With advanced nutritional coaching, you have the power to turn the tide. This approach goes beyond simple dietary adjustments; it explores at the cellular level how your body uniquely interacts with different nutrients. This personalized strategy is not just about eating better; it's about making profound changes that enhance your metabolic, cognitive, and cellular health.


By focusing on the specific needs of your body's unique genetic makeup, coaching empowers you to implement targeted nutritional strategies that can dramatically slow the hallmarks of aging. Whether it’s incorporating antioxidants to combat oxidative stress, optimizing your intake of B vitamins to support methylation, or adjusting your diet to improve proteostasis, each recommendation is tailored to boost your body’s natural resilience.


The result? A healthier, more vibrant you, equipped to enjoy a longer life with reduced risks of age-related diseases and a sustained zest for life. This holistic approach ensures that every aspect of your health is addressed, turning the dream of aging gracefully into an achievable reality.


Start today! Reach out to me on Instagram, email or phone.



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