Ask most people what longevity means and they’ll tell you it refers to how long one lives. Length of life defines our lifespan, yet is that what really matters most? Clearly, modern medicine has dramatically extended the lifespan of humans. In fact, since 1900, global life expectancy has doubled with the average person now living over 70 years. While the conventional medical community uses longer lifespan as the yardstick for longevity, it certainly doesn’t consider the quality of a life, meaning how long one maintains physical and mental vitality during their life.
While people are living longer, they aren’t necessarily living robust, energy-filled lives. Never in the history of humankind have people been more sedentary. Today people move less and sit more. Automobiles, technology, and desk jobs have created a shift toward less energy expenditure and, consequently, notable increases in chronic diseases like cardiovascular disease and type 2 diabetes. The average screen time spent just on mobile devices alone is 3 hours and 43 minutes per day for an adult in the US.
On top of that, or perhaps as a result, the NIH estimates that 70.2% – that’s 2 out of 3 adults – are overweight or obese. [1] From an evolutionary perspective, humans are designed to move – it was essential to our survival as a species. The shift from a physically active life to one with few to no physical challenges has occurred quite suddenly in terms of human existence. For the first time in history, we now have to set aside time, and actually schedule movement into our lives.
Clearly, our current lifestyle is not serving us – in fact, it’s killing us. Another first in human history: children today will have an estimated shorter lifespan than their parents. While we all start to age from the moment we’re born, there are multiple factors that can either slow down or accelerate the aging process. For many people, by the time they turn 65, they are on multiple medications, carry too much additional weight, have blood sugar imbalances, and spend most of their days sitting.
Instead of focusing on lifespan, a more powerful and beneficial metric is to create a longer “vitalityspan,” which refers to how long one maintains physical and mental strength, vigor, and stamina. In other words, it’s not about the years in your life, it’s the life in your years. That’s what truly matters.
We can’t improve what we can’t measure so here are several useful ways to ensure your vitalityspan is optimized. Here are a few key factors that play a significant role in optimizing longevity:
Epigenetic Transmutations and DNA Methylation
As we age, our DNA is negatively challenged by byproducts of our cellular metabolism. Environmental toxins also potentiate age-related alterations in our ability to repair DNA.
DNA methylation is a natural process whereby gene expression is regulated by the addition or removal of methyl groups to strands of DNA. Think of it as how your body tells your cells which genes should be expressed or not expressed. As we age, DNA methylation decreases, resulting in biological deterioration of our cells, making genes more susceptible to disease and damage. The primary factors contributing to the demethylation process are the diet and environmental toxins, like pollutants, UV radiation, and lifestyle choices.
By assessing one’s genomic pathways for strengths and weaknesses, we can pay close attention to potential genetic weaknesses and ensure our diet, lifestyle, and supplements support them. Genetics account for roughly 30% of our health status. The other 70% is influenced by how we eat and live.
Inflammation
Inflammation is often invisible, but it has the ability to wreak havoc in multiple systems in the body. The inflammatory process is one of the body’s innate wisdoms and it certainly serves a purpose when it comes to wound repair or fighting an infection. When inflammation becomes chronic, however, it damages endothelial cells that line the blood vessels. In response, the vessels absorb more cholesterol and form patches, or plaques to repair the damage. When these damaged blood vessels break apart, they can occlude the vessel, leading to a heart attack or stroke.
Contributing factors to chronic inflammation include:
- Stress (usually dismissed, unrelenting stress increases catabolic hormones and negatively impacts sleep, when the body typically repairs itself)
- Poor diet (Poor quality proteins and fats, inadequate phytonutrients, highly-processed foods, gluten, sugar, artificial sweeteners, and food additives)
- Heavy metals, chemicals, and mold/mycotoxins (indoor and outdoor pollutants, volatile organic compounds, poor water quality, water damaged buildings)
- Lack of adequate exercise (inadequate movement decreases cardiac output, slows blood flow, and increases the risk of metabolic disorders and hormone-related cancers [2])
By regularly checking inflammatory serum markers, we can address these factors before they become chronic issues. Eating a healthy diet, avoiding toxic environments, effectively managing stress, and maintaining an active lifestyle are all key to keeping inflammation in check.
Sleep
So many of us are incredibly sleep deprived yet don’t consider it a big problem. My husband used to say, “I’ll sleep when I die,” as if it didn’t matter that he was only getting 5-6 hours of rest each night. Sleep is like a rinse cycle for the brain – it’s when memories get established and neurons organize and revitalize.
Without a quality nightly recharge, the body begins to build up oxidative stress and experience advanced aging and neurological disorders. Some studies point to a link between sleep deprivation, oxidative stress (think rusting on the inside), and cancer.[3] Most people require a minimum of 7 hours of deep restfulness to maintain proper brain function and avoid reactive oxygen species (ROS) since it’s primarily produced in those who are sleep deprived.
Maintaining a regular sleep schedule and getting a solid 7-8 hours of sleep will help you stay mentally sharp and reduce the aging process. Using a wearable device that measures the quantity and quality of your sleep can help ensure you stay on target. We like the Oura ring, which also tracks activity, resting heart rate, and heart rate variability – all helpful metrics for monitoring longevity factors.
Slow Down the Clock
Here are a few easy additional hacks that have been shown to delay the onset of aging:
- Exercise: in particular HIIT Training [4]
- Fasting: calorie restriction and fasting both promote autophagy and are good for longevity [5]
- Sauna: 4 sessions of 20 minutes per week of Infrared sauna helps promote detoxification and reduce the risk of a cardiovascular-related death by 50%.[6]]
- Stimulate hormesis with cold immersion and/or cold showers. Research shows that “cold thermogenesis” for short periods of time can stimulate our cells’ ability to repair themselves.[7]
While none of us know how much time we have here, all of us can make sure that we maximize the quality of our lives. The thing is, you can’t put it off. It’s not something you can start tomorrow. We have to make the right choices today if we want to be healthy, vital, and cognitively sharp into our 60s, 70s, and 80s. So don’t wait, start working on your biological age today – you have the power to change your future.
References:
(2) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7700832/
(3) https://pubmed.ncbi.nlm.nih.gov/23371889/
(4) https://www.cell.com/cell-metabolism/comments/S1550-4131(17)30099-2
(5) https://pubmed.ncbi.nlm.nih.gov/16810568/
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FAQ
The following frequently asked questions expand on the key concepts discussed in this article and provide additional clinical context for practitioners interested in supporting healthy aging and vitality.
What is the difference between lifespan and vitalityspan?
Lifespan refers to how long a person lives, while vitalityspan refers to how long they maintain physical and mental vitality. Although modern medicine has increased average lifespan, the article emphasizes that maintaining strength, energy, and cognitive function throughout life is a more meaningful measure of healthy aging.
What lifestyle factors have the greatest impact on healthy longevity?
Healthy longevity is influenced by daily lifestyle habits more than genetics alone. According to the article, movement, nutrition, sleep, stress management, and reducing environmental toxin exposure all play important roles in supporting vitality over time.
How much of healthy aging is influenced by genetics versus lifestyle?
The article states that genetics account for roughly 30% of overall health status, while approximately 70% is influenced by diet and lifestyle. This highlights the importance of modifiable factors when supporting long-term vitality.
What is DNA methylation and why is it important for longevity?
DNA methylation is a natural process that regulates gene expression by adding or removing methyl groups from DNA. The article explains that methylation tends to decline with age, making cells more susceptible to deterioration, disease, and damage.
How do diet and environmental exposures affect DNA methylation?
The article identifies diet and environmental toxins as major contributors to age-related changes in DNA methylation.
Examples include:
- Pollutants
- UV radiation
- Lifestyle choices
- Dietary factors
Supporting genetic pathways through appropriate diet, lifestyle, and supplementation may help address individual vulnerabilities.
Why is chronic inflammation considered a major driver of aging?
Chronic inflammation can damage blood vessel linings and contribute to plaque formation over time. The article explains that persistent inflammation increases the risk of cardiovascular events such as heart attack and stroke when damaged vessels become occluded.
What factors contribute to chronic inflammation?
The article identifies several common contributors to chronic inflammation, including:
- Chronic stress
- Poor-quality diet
- Highly processed foods
- Gluten, sugar, artificial sweeteners, and food additives
- Heavy metals, chemicals, and mold exposure
- Inadequate physical activity
Addressing these contributors may help reduce inflammatory burden before chronic disease develops.
Why should inflammatory markers be monitored?
Regular monitoring of inflammatory serum markers may help identify chronic inflammation before significant disease develops. The article recommends combining laboratory assessment with improvements in nutrition, movement, stress management, and environmental health.
Why is sleep important for healthy aging?
Sleep supports brain restoration, memory formation, and neuronal organization. According to the article, inadequate sleep contributes to oxidative stress, accelerated aging, and may be associated with neurological disorders.
How much sleep is recommended to support longevity?
The article recommends maintaining a consistent sleep schedule with at least 7–8 hours of quality sleep each night. This level of rest supports normal brain function and may help reduce oxidative stress associated with sleep deprivation.
Can wearable devices help monitor factors related to longevity?
Yes. The article suggests wearable technology can help individuals track metrics associated with healthy aging. The example provided is the Oura ring, which measures:
- Sleep quantity and quality
- Activity
- Resting heart rate
- Heart rate variability
These metrics can help monitor habits that influence vitality.
What lifestyle practices may help support healthy aging according to the article?
The article highlights several lifestyle strategies associated with healthy aging.
These include:
- High-intensity interval training (HIIT)
- Calorie restriction or fasting to promote autophagy
- Regular infrared sauna use
- Cold immersion or cold showers to stimulate hormesis
These approaches are presented as supportive lifestyle practices that may help delay aspects of the aging process.
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ABOUT THE AUTHOR
Anne Fischer Silva’s journey in the field of functional nutrition over the last 23 years began in a functional medicine practice, where she learned the power of objective testing. From there she opened her own business, A New Leaf Nutrition, where she built a wait-list distance practice. Anne has taught nutrition courses in Washington, Hawaii, and California, and hosted a radio show, “Health-Wise”, for 3 years. She helped develop the original curriculum for the Nutritional Therapy Association, was a lead instructor with NTA for 8 years, and she continues to lecture nationally on a variety of health topics. Anne founded the Institute of Restorative Health in 2013 with the sole purpose of training other nutrition professionals how to address complex issues with their clients and achieve the same stellar results she gets in her practice.
The core principles Anne built the Institute of Restorative Health upon are the importance of nutrient-dense foods and balancing biochemistry. From there, she looks for the deeper underlying issues by utilizing a variety of testing techniques and customized healing methods to restore optimal function and health.
Anne received her certification in functional nutrition from Advanced Integrated Medical Institute in Washington, DC in 2000 and she is a Master Restorative Health Practitioner and Functional Nutritional Therapy Practitioner.
In 2022, Anne decided to pursue new and different aspects of holistic wellness and left the Institute of Restorative Health in the hands of her dear friend and business partner, Margaret Floyd Barry.


