"I slept plenty, but I'm still tired," "Even on weekends, my body feels heavy and I can't move"... The chronic fatigue that plagues people in their 40s to 60s may not be solely due to age. This kind of chronic fatigue may be related to energy deficiency caused by blood sugar fluctuations
This article will explain in detail why high blood sugar levels cause severe fatigue, focusing on the function of mitochondria
table of contents
Why do you feel tired even after eating?
If you feel sluggish even after eating and resting, it's because the food you eat isn't being properly converted into energy in your body. Let's take a look at what's happening at the cellular level
Reduced insulin function and energy deficiency
Even if you consume carbohydrates through your meals, if you have "insulin resistance," where insulin doesn't function properly, the sugar in your blood won't be smoothly absorbed into your cells. As a result, despite high blood sugar levels, your cells will experience a shortage of energy sources. In other words, even though you're eating, your body isn't producing enough energy
The mechanism by which the brain and muscles experience fatigue
The brain and muscles are the two parts of the human body that consume the most energy. If sugar cannot be properly absorbed, muscles lose the energy needed to move, causing severe fatigue and heaviness. Furthermore, the energy supply to the brain is also disrupted, which can lead to symptoms such as decreased concentration and excessive daytime sleepiness. This is the true nature of fatigue that doesn't go away even with rest
For those in their 40s to 60s, especially those in positions of responsibility, intense drowsiness during meetings or a lack of energy to pursue hobbies on weekends can negatively impact work performance and quality of life. Self-diagnosing this as age-related fatigue and relying on caffeine and energy drinks risks overlooking underlying glucose metabolism issues. Understanding the mechanisms of fatigue correctly is the first step towards a solution
A vicious cycle of mitochondrial dysfunction and hyperglycemia
Understanding the mitochondria within cells is crucial when investigating the causes of fatigue. This article explains how high blood sugar levels damage these organelles
The role of mitochondria within cells
Our cells contain mitochondria, which burn ingested sugars and fats to produce ATP (adenosine triphosphate), the energy necessary for life. However, mitochondria are prone to dysfunction with age. While we can efficiently convert what we eat into energy when we are young, this becomes less efficient as we age
Source:Diabetes 51(4):295-297, 2008 | Age-related changes in mitochondria and glucose metabolism
Mitochondrial dysfunction due to oxidative stress
When blood sugar levels remain high, reactive oxygen species are generated within cells, creating severe oxidative stress. This oxidative stress impairs mitochondrial function and even causes morphological abnormalities. As a result, ATP production becomes impaired, leading to a vicious cycle of increased fatigue. It is also thought that this mitochondrial dysfunction may be involved in the development of type 2 diabetes
Source:Tokyo Women's Medical University Academic Repository | Diabetes and Mitochondrial Function
Methods to treat persistent fatigue and regenerative medicine
What measures are necessary to keep mitochondria healthy and alleviate severe fatigue? We will introduce these measures from both a daily care perspective and the latest medical treatments
Daily mitochondrial activation care
Maintaining healthy mitochondria requires daily blood sugar control. For type 2 diabetes, energy restriction, short-term carbohydrate restriction, low-GI diets, and active intake of dietary fiber are considered effective. Consuming vitamin C and polyphenols found in tea, which have excellent antioxidant properties, is also beneficial. Moderate aerobic exercise, such as walking, can induce antioxidant enzymes and improve insulin sensitivity, thus promoting overall health
Source:Diabetes Treatment Guidelines 2024 | Chapter 3 Dietary Therapy
Defective biosynthesis of ascorbic acid in Sod1-deficient mice results in lethal damage to lung tissue
Niigata Prefectural College of Nursing | Comparison of the antioxidant capacity of teas, which are antioxidants that eliminate reactive oxygen species
Diabetes Treatment Guidelines 2024 | Chapter 4 Exercise Therapy
IRYO Vol.69 No.7 | Exercise and oxidative stress - The importance of the balance between reactive oxygen species and antioxidant defense -
Regenerative medicine approaches to rejuvenate cells
As a new approach to chronic fatigue, regenerative medicine and next-generation anti-aging care, which are expected to affect cellular function, are attracting attention. Stem cell therapy and therapies using exosomes secreted from them are fields in which the repair of damaged cells and the improvement of systemic anti-inflammatory and antioxidant effects are expected. Furthermore, in recent years, there are also groups that are researching methods such as mitochondrial transplantation
For those who previously had to accept fatigue as an inevitable part of aging, regenerative medicine, which draws out the body's own cellular repair capabilities, offers a new ray of hope. Those who feel they've reached the limits of self-care through diet and exercise alone may find that incorporating such scientific approaches can help them regain a vibrant daily life. Consulting a specialized clinic is also a good idea
summary
Persistent fatigue and lethargy are your body's SOS signals indicating abnormal blood sugar levels and cellular energy deficiency. If left untreated, this can affect not only diabetes but also overall aging, making early lifestyle changes essential. For fatigue that cannot be alleviated by massage or energy drinks, consider regenerative medicine that works at the cellular level