How easy it is to get tired
- The tendency to get tired easily is due to a lack of vitamin B12, which reduces red blood cell production and nerve function, leading to a tendency to suffer from chronic fatigue.and may interfere with daily life.
- C-type mutation in DNA region rs2287921A study from the University of Virginia and East Carolina University found that people with
- appropriateImprovement of vitamin B12 intake, nutritional management, and lifestyle habitsIt is possible to prevent and reduce fatigue by
Overview Vitamin B12 is extremely important for various functions within the body. It plays an essential role in the production of red blood cells, the replication of DNA, and the normal functioning of the nervous system. If the amount of vitamin B12 is insufficient, fatigue may appear. This fatigue is different from normal fatigue, and is a serious type of fatigue that does not improve immediately even after resting. A lack of vitamin B12 reduces the production of red blood cells, which are essential for carrying oxygen throughout the body, causing fatigue. Lack of oxygen can lead to anemia, which can make you feel weak and tired. Furthermore, vitamin B12 is important for nerve function, and a deficiency affects cellular energy production, making you feel more easily tired. This type of fatigue can also interfere with daily life and performing basic tasks. Therefore, the association between vitamin B12 levels and fatigue is important for health and well-being. A study by Keene et al. at the University of Virginia and East Carolina University revealed that the tendency to get tired easily is associated with a DNA region called rs2287921. There are three genotypes in this DNA region: TT, TC, and CC, and it was found that people with the C genotype tend to have a higher risk of getting tired easily.
What is the ease with which fatigue accumulates?
Easily fatigued is a predisposition to accumulate chronic fatigue that is difficult to recover from even with rest, mainly due to a lack of vitamin B12.Vitamin B12 is an essential nutrient for red blood cell production, DNA replication, and normal functioning of the nervous system, and a deficiency can lead to severe fatigue symptoms (1).
Causes and mechanisms of how easily fatigue accumulates
The following factors are involved in how easily you get tired.
- Decreased red blood cell production:Vitamin B12 deficiency reduces red blood cell production and reduces the ability to carry oxygen throughout the body.
- Development of anemia:Lack of oxygen supply leads to anemia, which causes a feeling of weakness and chronic fatigue.
- Decline in nerve function:Vitamin B12 is important for nerve function, and a deficiency impairs cellular energy production.
- Genetic predisposition:People with type C mutation in DNA region rs2287921 tend to be at higher risk
Main symptoms of easy fatigue
The following symptomsSignificant when lacking vitamin B12You may.
- Chronic fatigue that does not improve with rest
- Feeling of weakness/fatigue throughout the body
- decreased concentration
- Difficulty performing daily activities and basic tasks
- Dizziness and shortness of breath associated with anemia
Difference between easy fatigue and normal fatigue
| Comparison items | How easy it is to get tired | normal fatigue |
|---|---|---|
| Main features | Chronic fatigue that is difficult to recover from even with rest | Temporary fatigue that recovers with rest |
| cause | Vitamin B12 deficiency/genetic predisposition | Exhaustion from physical and mental activity |
| genetic involvement | Involved in type C mutation of rs2287921 | Genetic factors are limited |
| Impact on daily life | Trouble performing basic tasks | Can be recovered with proper rest |
| Measures | Vitamin B12 supplementation/medical intervention | Adequate sleep/rest |
Prevention and treatment
To prevent and reduce fatigueComprehensive nutritional and lifestyle improvementsis valid.
- Active intake of vitamin B12:Consciously consume animal foods such as meat, seafood, eggs, and dairy products
- Use of supplements:If your diet alone is insufficient, use vitamin B12 supplements under the guidance of your doctor.
- Regular blood tests:Regularly monitor vitamin B12 levels and red blood cell counts
- Moderate exercise:Aerobic exercise promotes blood circulation and improves oxygen transport efficiency
Relationship between genes and ease of fatigue
Relationship between DNA region rs2287921 and fatigue risk
A study by Keene et al. (1) from the University of Virginia and East Carolina University found that the DNA region rs2287921 is associated with the risk of fatigue.
- There are three genotypes of rs2287921: TT, TC, and CC.
- Genotype with type C mutationPeople tend to be at a higher risk of becoming easily fatigued.
Genotype distribution in Japanese (rs2287921)
| Genotype | Percentage of Japanese people | percentage of the world |
|---|---|---|
| TT type | 90.6% | 26.6% |
| TC type | 9.1% | 49.9% |
| CC type | 0.2% | 23.3% |
Rationale for testing
Surface DNA area: ease of fatigue
The gene region that most strongly influences fatigue is rs2287921. The distribution of isomorphic genotypes in Japan is as follows.
- TT 90.6 %
- TC 9.1 %
- CC 0.2 %
Basis for inspection
Research by Keene et al. at the University of Virginia and East Carolina University has revealed that the tendency to get tired is linked to genes. There is a region called rs2287921 in the human genome, and there are two types of mutations, T and C, in the gene in this region. It has been found that people with type C mutation tend to have a higher risk of getting tired easily (1).
The DNA region investigated this time
Schematic diagram of DNA map present in cells
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Related genes
| Related genes | RASIP1 |
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Frequently asked questions (FAQ)
Q1. What is the ease with which fatigue accumulates?
Easily fatigued refers to a tendency for a person to suffer from chronic fatigue that is difficult to recover from even with rest due to a decline in red blood cell production, DNA replication, and nerve function due to a lack of vitamin B12.The C-type mutation in the DNA region rs2287921 is involved as a genetic predisposition (1).
Q2. What is the cause of easy fatigue?
The main cause isDecreased red blood cells and decreased oxygen carrying capacity due to vitamin B12 deficiencyIt is. When the number of red blood cells decreases, there is a lack of oxygen supply throughout the body, leading to anemia, which causes weakness and chronic fatigue. Carriers of the type C mutation in the DNA region rs2287921 tend to be at increased risk (1).
Q3. What is the difference between easy fatigue and normal fatigue?
normal fatigueTemporary exhaustion recovered by restHowever, the ease with which fatigue accumulatesChronic fatigue that is difficult to improve even with rest due to vitamin B12 deficiency or genetic predispositionIt is. It can interfere with daily life and performing basic tasks.
Q4. Can genetic testing determine the risk of fatigue?
By examining the genotype of the DNA region rs2287921,Understand risk trends related to ease of fatigueYou can. A study from the University of Virginia and East Carolina University found that people with the C genotype tend to be at higher risk.
References
- Reference link 1: 2014 Aug., Keith L Keene, Front Public Health