Clearing out zombie cells for a healthier, younger body

Did you know that trapped cells in your body can set an aging process in motion—quietly and over time? These cells refuse to die and build up in your tissues. Scientists call them senescent cells, but they’re better known as zombie cells. In this article, you’ll read what these cells do to your health and how you can tackle them.

What is a zombie-senescent cell?

Cellular senescence is a process in which cells stop dividing. Normally, your immune system clears damaged cells, or these cells commit suicide via a process called apoptosis, but sometimes this goes wrong. The cell stops dividing but remains metabolically active. So the meaning of senescence is about cells getting stuck in an intermediate phase. 

These cells are not dead, but they also no longer function for your tissues. They remain in your body and secrete harmful substances. What is cell senescence in practice? It is a survival mechanism that prevents damaged cells from developing into tumors. However, as you get older, these cells accumulate. Your body then can’t remove them quickly enough.

Lower quality of life due to low-grade inflammation and oxidative stress

Zombie cells are not passive. They release a mix of proteins that we call SASP. These substances cause inflammation in the surrounding healthy cells. This creates a vicious cycle of oxidative stress. This involves too many free radicals being present in your cells.

Symptoms of oxidative stress often show up as fatigue, joint pain, and dull skin. The constant release of inflammatory substances by senescent cells damages your tissues at the cellular level. There are indications that this process contributes to chronic age-related complaints. 

How do zombie cells form in your body?

Various factors trigger the formation of these cells. DNA damage and telomere shortening play a major role in this. Telomeres are the protective caps on your chromosomes. With each cell division, they get shorter. When they become too short, the cell enters a senescent state.

External factors also have an impact. Studies from the University of North Carolina (UNC) and research by psychologist Elissa Epel from 2022 point to the role of chronic stress.1 This study analyzed how early trauma and persistent psychological strain can literally shave years off biological lifespan.

The results of this research show that stress hormones suppress telomere shortening. This has direct consequences for your immune system: your cellular immunity decreases and your immune system’s memory is impaired. As a result, your body recognizes harmful cells less well, meaning these zombie cells stick around longer and cause damage in your tissues.

Zombie cells and aging

Preclinical research2 sheds new light on the role of these cells. Researcher Jan van Deursen showed that removing senescent cells in mice slowed aging traits. The mice stayed vigorous longer, and their fur looked healthier.

In addition, there is the brain-body energy-conservation model. This model suggests that zombie cells consume a lot of energy from your metabolism. To compensate, the brain may switch off or slow down other functions. This can lead to less energy or a less sharp memory during the day. Cellular aging is therefore directly linked to how efficiently your body clears these cells. 

Senolytics and senomorphics: strategies against zombie cells

Scientists are investigating two main methods to reduce the burden of senescent cells.

What are senolytics?

Senolytics are substances that specifically track down and destroy zombie cells. They force the cell to undergo apoptosis (cell death) after all. Well-known combinations in research are Dasatinib and Quercetin (D+Q). Substances such as fisetin and navitoclax are also being studied. In mouse models, these substances led to an improvement in overall health functions and lifespan. 

What are senomorphics?

Senomorphics work differently. They suppress harmful SASP release, instead of killing the cells. They basically put the “zombie” on a leash. Examples of substances that research associates with this effect are rapamycin, metformin, and resveratrol. Omega-3 fatty acids are also being studied because of their influence on inflammatory responses.

Restoration of the cardiovascular system

Removing zombie cells may have a positive effect on your heart and blood vessels. A European study, in the European Heart Journal, suggests that senolytics can reduce arterial stiffness in mouse models.3

The research focuses on specific molecular routes, such as the p16 and p53/p21 pathways. By influencing these routes, the buildup of harmful cells in the vessel wall can be inhibited. This is associated with better blood flow and a lower workload for the heart.

The main findings of the study are:

• Restoration of elasticity: By influencing these specific routes with senolytics, the buildup of harmful cells in the vessel wall was inhibited.
• Improved blood circulation: This resulted in measurably better blood flow and a lower mechanical load on the heart.
• Potential for the future: Although conducted in mouse models, the study provides a crucial foundation for new therapies against age-related cardiovascular diseases in humans.

How to get rid of zombie cells naturally

The role of lifestyle in zombie cells

You can do a lot yourself to reduce oxidative stress. When clearing out defective cells, a healthy lifestyle supports your body. 

• Exercise regularly: Physical activity stimulates your immune system to renew cells.
• Limit stress: Chronic stress increases cortisol, which accelerates telomere shortening.
• Healthy diet: Eat plenty of vegetables and fruit rich in natural antioxidants.

These habits help slow the formation of new zombie cells and keep your cellular level healthy.

Supplements and natural remedies

In addition to diet, many people look to an oxidative stress supplement to support their body. There are several substances that are currently being extensively researched:

• Resveratrol: Is being investigated as a senomorphic to temper inflammatory signals. 
• NMN and NR: There are indications that optimizing your NAD-levels support cell repair. 
• TMG (Trimethylglycine): TMG contributes to normal homocysteine metabolism with a daily intake of 3 capsules (1.5 g) of 500 mg each. A healthy metabolism is important for general cellular functions.

The future of rejuvenation and clinical studies

The step from mouse to human is currently being made. Companies such as Unity Biotechnology are conducting clinical trials with senolytics for specific human diseases. Scientists are hunting zombies with new technologies such as PROTACs. These are molecules that very precisely break down harmful proteins in senescent cells.

Although much research is still in the preclinical phase, the direction is clear. Tackling ageing at the source (the cell itself) is the new goal of modern biology.

Do you want to support your body at the cellular level? Start reducing stress today and choose a diet rich in antioxidants. View our range to complement your healthy lifestyle with supplements and support your vitality.

Sources:

¹ Epel, E. S. (2022). The toxic stress of early-life adversity, chronic stress, and pruning of the biological lifespan. https://doi.org/10.1097/PSY.0000000000001031

² Scudellari, M. (2017, 26 October). To stay young, kill zombie cells. https://doi.org/10.1038/550448a

3  Stojanović, S. D., et al. (2024). Senolysis improves vascular function and cardiac workload in models of arterial stiffness.https://doi.org/10.1093/eurheartj/ehad856