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How a Sedentary Lifestyle Affects Your Cells

How a Sedentary Lifestyle Affects Your Cells

While we’re all well aware that a sedentary lifestyle is bad for our health, we rarely examine the repercussions for our cells. So, what are the cellular effects of this troubling lifestyle, and how can we guard against them?

What Counts as a Sedentary Lifestyle?

A sedentary lifestyle is typically characterized by prolonged periods of inactivity and low levels of physical activity. Individuals leading such a lifestyle often engage in activities that involve minimal movement, such as sitting for extended periods at work, during leisure time, or while commuting. Sedentary behavior can also encompass activities like watching television, playing video games, or using electronic devices for extended periods without breaks for physical movement.

In today's modern society, sedentary lifestyles have become increasingly prevalent due to various factors including technological advancements, changes in work environments, and shifts in recreational activities. Sedentary jobs that require long hours of desk work coupled with the convenience of transportation and entertainment options that minimize physical effort contribute to the normalization of sedentary behaviors. Despite the awareness of the detrimental effects associated with prolonged sitting and inactivity, many individuals find it challenging to adopt healthy lifestyle habits, breaking away from sedentary habits due to the demands of contemporary living.

The Connection Between Sedentary Living and Telomeres

In a study published in Medicine & Science in Sports & Exercise, scientists examined the effects of a sedentary lifestyle on the preservation of telomeres, which function as the protective regions of our DNA.

Found at the ends of our chromosomes, telomeres help maintain genetic stability. As a consequence of cell division, oxidative stress, and inflammation, telomeres erode. This erosion serves as an indicator of cellular aging.

Regular physical activity is linked to reduced oxidative stress and inflammation, and several large studies have reported a beneficial connection between physical activity and telomere length. The evidence from the aforementioned study suggests that a sedentary lifestyle can contribute to telomere shortening.

Another study published by the UCSD School of Medicine found that women who sat for 10 hours a day and exercised for 40 minutes or less had shorter telomeres than women who are more active.

An archive of internal medicine also shows that men and women who are less physically active in their leisure time experience expedited erosion of leukocyte telomeres compared to those who are more active. Leukocyte telomeres are protective caps at the ends of white blood cell chromosomes, safeguarding them from damage and contributing to cellular aging processes.

Deciphering Sedentary Lifestyles: Unraveling the Cellular Impact

Sedentary lifestyles exert profound effects on cellular health, with repercussions spanning various aspects of cellular function. One significant consequence is the disruption of mitochondrial dynamics. Mitochondria, often referred to as the powerhouses of the cell, play a pivotal role in energy production through oxidative phosphorylation. Oxidative phosphorylation is how cells make energy (ATP) by using oxygen to help convert food into fuel.

Prolonged inactivity compromises mitochondrial function, leading to decreased ATP production and impaired cellular energy metabolism. Additionally, sedentary behavior contributes to heightened oxidative stress within cells. This oxidative imbalance can result in cellular damage, including DNA mutations and protein oxidation, further compromising cellular integrity.

Furthermore, sedentary lifestyles are associated with increased inflammation, characterized by elevated levels of inflammatory markers within cells. Chronic inflammation contributes to cellular dysfunction and is implicated in the development of various diseases, including cardiovascular disorders and certain cancers. Moreover, prolonged physical inactivity can accelerate cellular aging processes, leading to premature cell senescence and impaired cellular repair mechanisms. These multifaceted effects underscore the critical importance of incorporating regular physical activity into daily routines to support optimal cellular health and overall well-being.

Solutions to a Sedentary Lifestyle

Move Your Body

Inactivity actually stresses your body—it's one of the stressors we call out when we speak about lifestyle stress management. How can we guard against the debilitating effects of prolonged sedentary time? The first step: get moving.

If you have the ability to exercise, go for a run, jog, or walk—even if that means finding creative ways to do so at home. The rush of endorphins will help your cells thrive and will help your mindset as well.

You can also find a bevy of resources on the internet. Droves of personal trainers, gyms, and fitness studios offer a variety of exercise routines online at no cost. From national chains to independently owned facilities, offerings span a wide range.

This equipment-free 10-minute workout by fitness expert and ChromaDex advisor Jennifer Cohen is a great place to start.

Prioritize Cellular Nutrition

Consider adding a supplement to your wellness regimen. Supplementing with cellular nutrients can provide additional support for your cells. NAD-boosting supplements work to stimulate energy at the cellular level.

While NAD-boosting supplements don't replace the need for exercise, they afford an added layer of resilience and support as your cells reap the benefits of healthy physical activity.

And for those struggling to get active, NAD-boosting supplements help replenish the depleted NAD+ levels that go hand in hand with a sedentary lifestyle.

Strike a Healthy Balance

The next time you’re tempted to spend the day on the couch, think of the cellular consequences. Strike a healthy balance between lounge time and physical activity, lending your cells some extra support with the right nutrients and daily supplements.

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