You should pay attention if you feel unwell, tired for a long time

Feelings of unwell and persistent fatigue are on the rise. Chronic fatigue, also known as chronic fatigue, is not life-threatening, but can be a sign of the onset of a medical condition. Therefore, do not be subjective with prolonged fatigue.

1. What is persistent fatigue?

Feelings of unwell and persistent fatigue are on the rise. Fatigue is a common sign in life, making the body feel exhausted, sluggish, and no spirit to study and work. Fatigue can appear after you work too hard, eat poorly, have insomnia, don't get enough sleep, or have an illness. However, if fatigue persists for a long time, it will make the body lose energy gradually and affect daily life.
Prolonged fatigue, also known as chronic fatigue, can be caused by inappropriate living habits, psychological instability or more seriously, the initial symptom of a medical condition. When suffering from a certain disease, the body must strengthen the immune system, so there will be a need to expend a lot of energy. That's why mild illnesses like the flu to chronic diseases like diabetes, heart disease, and even dangerous diseases like cancer can cause long-lasting fatigue.
Usually, if fatigue is caused by stress, anxiety, insomnia or acute minor illnesses, it will quickly disappear when the cause is resolved. Therefore, many people often underestimate the feeling of body fatigue because they think that fatigue will go away when the body is relaxed, or use tea or coffee to suppress this feeling. However, if fatigue persists, understanding the cause is important to help treat the condition.

2. Do not be subjective if you are tired for a long time

Persistent fatigue, though not life-threatening, can be a sign of the onset of a medical condition. Therefore, you should not be subjective with prolonged fatigue but have to find the cause. Here are 10 common medical causes of persistent fatigue.

2.1. Anemia

Anemia makes the oxygen supply to the cells and metabolism impaired. The body with anemia along with lack of oxygen will always have a feeling of prolonged fatigue, dizziness, exhaustion, sluggishness and lack of energy to study and work. In addition, anemia can also make the body not eat well, insomnia, difficulty falling asleep, restless sleep, hair loss, ringing in the ears, abdominal pain, cold hands and feet, irregular heartbeat. The most common form of anemia is iron deficiency anemia.
cảm thấy không khỏe
Cảm thấy không khỏe và mệt mỏi kéo dài có thể là dấu hiệu khởi đầu của một tình trạng bệnh lý

2.2.Diabetes disease

People with diabetes will have high blood glucose levels, causing the body to use a lot of energy to regulate blood sugar levels. Therefore, diabetes is one of the causes that cannot be ignored when suffering from chronic fatigue. People with diabetes will have common symptoms such as fatigue, constant hunger, drinking a lot of water, frequent urination, weight loss, impaired vision and irritability. In which fatigue is the first, most common and longest-lasting symptom.


Cancer fatigue is a form of chronic fatigue, caused by many factors. Cancer releases many cytokines, hormonal changes, muscle weakness, and damage to multiple organs such as the heart, liver, kidneys or lungs all contribute to prolonged fatigue. In addition, the pain and anemia as well as the side effects of cancer treatment (drugs, chemotherapy, radiation) also make patients constantly tired.

2.4. Thyroid disease

The thyroid gland produces a hormone called thyroxine, which plays a role in regulating energy and controlling metabolism. When you have thyroid disease, especially hypothyroidism (hypothyroidism), thyroid hormones will not work effectively, disrupting the metabolism, making the body feel tired all the time.

2.5. Cardiovascular disease

Chronic fatigue is also a common symptom of congestive heart failure. Heart failure makes the heart contract weak, blood flow to organs and tissues is not enough, making the body always tired. This condition will be aggravated if the patient exerts a lot. Other symptoms of heart failure such as shortness of breath, shortness of breath, shortness of breath, swelling in the legs and arms.

2.6. Adrenal insufficiency

Adrenal insufficiency is a disease that causes patients to feel fatigued for a long time, less common than thyroid disease. In addition to fatigue, adrenal insufficiency also causes headaches, diarrhea, abdominal pain, weight loss, and increased skin pigmentation.


Depression is a neurological disease that causes feelings of fatigue, sadness, prolonged loss of interest and mood disturbances, disrupts living habits and makes patients think negatively, even thinking about death and committing suicide.
Serotonin is a hormone that plays an important role in regulating the body's circadian rhythms. Depression has a great effect on the brain, so it reduces the secretion of the hormone serotonin, reduces energy levels and makes the body tired all day. Therefore, persistent fatigue is very common in people with depression. If not detected and treated early, depression can have serious consequences.
cảm thấy không khỏe
Tình trạng mỏi mệt kéo dài rất phổ biến ở người bệnh trầm cảm

2.8.Deficiency of vitamin B12

Vitamin B12 is important for brain health, immune system and metabolism. Factors that cause vitamin B12 deficiency can be old age, a plant-based diet, digestive system diseases, and diabetes medications. Lack of vitamin B12 makes the organs in the body work less efficiently, patients easily fall into chronic fatigue, moodiness, memory loss, impaired vision, dizziness and itchy hands and feet .

2.9. Sleep apnea

Sleep apnea is a condition in which breathing stops or very shallow breathing for a short time during sleep leading to a lack of oxygen. This disease is a sleep disorder that greatly affects the quality of sleep at night. The patient does not sleep well, sleeps restlessly and after waking up will always feel tired because the brain is awakened to perform breathing. People with sleep apnea syndrome will have snoring, headaches in the morning due to lack of oxygen in the brain, fatigue and excessive sleepiness during the day despite having slept a lot at night. This long-term condition can lead to high blood pressure, cardiovascular disease and worse, stroke.

2.10. Diseases of the respiratory tract

Acute respiratory diseases such as flu or cold, bronchitis, pneumonia will make the patient's body feel tired all day. But this condition is only present for a sunny period and will go away on its own when the disease is in remission. In contrast, chronic diseases of the respiratory tract such as bronchial asthma, chronic obstructive pulmonary disease, pulmonary fibrosis, and atelectasis will interfere with prolonged breathing and gas exchange. As a result, people with this condition often experience shortness of breath and chronic fatigue.
Prolonged fatigue can have many different causes. Therefore, when the symptoms do not improve, the patient should go to the medical center to examine and find the cause to have the best treatment plan to ensure the best health.
Periodic health check-ups help to detect diseases early, so that there are treatment plans for optimal results. Currently, Vinmec International General Hospital has general health checkup packages suitable for each age, gender and individual needs of customers with a reasonable price policy.
Results of the patient's examination will be returned to the home. After receiving the results of the general health examination, if you detect diseases that require intensive examination and treatment, you can use services from other specialties at the Hospital with quality treatment and services. outstanding customer service.

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