The causes of body and muscle fatigue vary from person to person, and range from transient and slight to serious and emergency. Here are the most important causes of body and muscle fatigue:

Causes of body and muscle fatigue
Among the most important and well-known causes of body and muscle fatigue are the following:

1- Allergies of all kinds
One of the common causes of body and muscle fatigue is allergies, whether seasonal allergies, allergic rhinitis, or even food allergies. There are many allergens that may cause symptoms to increase severely and thus feel tired, such as: pollen scattered in the air, and insects such as; Dust mites, weather changes.
Also, body fatigue may be one of the apparent symptoms of allergy to a particular type of food, and there are many medications that help relieve allergy symptoms, and knowing and avoiding foods that cause allergies also helps prevent body fatigue.

Poor blood circulation
You may feel tired in the body and muscles in general, and in the feet in particular, as a result of poor blood circulation and not flowing as it should in different parts of the body, especially the lower half of the body.

Therefore, it is preferable to maintain your activity during the day and avoid wearing tight clothes, in addition to keeping some diseases that may have caused poor blood circulation under control, especially diabetes (Diabetes).

3- Having a chronic disease
One of the causes of body and muscle fatigue is one of the following chronic diseases:

Peripheral artery disease: where blood flow in some blood vessels becomes difficult, which leads to a lack of sufficient blood supply to the muscles of the body for their activity.
Lung diseases: Some lung diseases may cause the respiratory system to be unable to supply enough oxygen to the body, which causes constant fatigue.
Diabetes: Many complications of diabetes cause constant fatigue in the body if the disease is not controlled.
Multiple Sclerosis: Body and muscle fatigue is the most common symptom of this disease.
Heart diseases, especially heart failure: These diseases cause the heart’s inability to provide the body with sufficient blood and oxygen, which causes permanent fatigue.
Kidney disease: Any defect in the ability of the kidneys to drain toxins from the body may cause a feeling of permanent fatigue and exhaustion.
Anemia: Because there is not enough blood in the body, the muscles do not get enough of the necessary oxygen.
Rheumatoid arthritis: This disease is one of the common causes of constant feeling of tiredness and fatigue, especially because of the resulting damage to the joints if the disease is not controlled properly.
4- Muscle overuse or underuse
One of the main causes of body and muscle fatigue is not using the muscles enough, being lazy or even sitting and staying in the same position for long periods of time.

If the muscles are not used on a daily basis as it should, the body begins to replace some muscle tissue with fatty tissue, which can be reversed if you start exercising and physical activity on a daily basis, especially in your twenties and thirties.

Muscle overuse, such as in the case of intense and strenuous exercise, can also cause body and muscle fatigue and extreme fatigue.

5- Sleep disturbances
The presence of any problems and disorders that hinder sleep at night or reduce its quality is one of the causes of common body and muscle fatigue, and these are the most important problems that may cause a lack of sleep:

Insomnia and chronic anxiety.
Chronic pain.
restless leg syndrome.
Working night shifts.
Sleep apnea syndrome.
6- Causes of body and other muscle fatigue
In addition to all of the above, there are also many other reasons for body and muscle fatigue, and these are some factors, cases and diseases that may be accompanied by a feeling of constant fatigue:

Thyroid diseases.
Autoimmune deficiency disease, also known as AIDS.
Chronic fatigue syndrome.
Heart attack and stroke.
Addison’s disease.
Deficiency of minerals and vitamins.
Take certain medications.

Waking up tired in the morning, feeling weak and tired during the day, unwillingness to carry out daily chores, and a general state of fatigue These symptoms, which are thought to be caused by the high pace and routine of work and the pace of life in the city, can actually be symptoms of serious illnesses.

Therefore, it is necessary to know the reason behind this condition, which tires the body and muscles and prevents a person from carrying out his routine activities with vigor and energy, and this is what we will learn about in our next article, so come with us:


Fatigue and tiredness
Fatigue can be defined as feeling tired and unable to do any work, no matter how small, or the lack of any activity or energy for a person while doing daily work.

A person may be lazy to eat, go to bed, or even rest, but it is very important to determine whether this is due to laziness, low energy, or illness.

Fatigue in medical language is also called chronic fatty syndrome, and this is a condition that can last for six months or more without any clear indication, and this can have an effect on memory, and there is no cure for fatigue and exhaustion, but its symptoms are treated.

Fatigue is a chronic pain syndrome that manifests in body aches and weakness, and its most prominent feature is common muscle pain. It negatively affects the daily life of patients and causes loss of work force. In addition to common body aches, there are complaints of weakness, fatigue, reluctance, and sleep disturbances.

There are two conditions for fatigue and tiredness:
physical fatigue
In this case, the person feels difficulty in performing tasks that he usually does easily, such as climbing stairs.

A strength test can be done to find out the cause, and this may be caused by muscle weakness.

mental fatigue
In this case, the person is unable to focus, as there is difficulty in performing tasks that require concentration.

These people always feel sleepy or may find it difficult to wake up and be active while working.

The most common group of diseases in which fatigue appears is anemia because the lack of hemoglobin, which carries oxygen from the lungs to the rest of the body, makes a person feel tired and weak.

In this case, the person must be examined by a specialized doctor and carry out the necessary tests, and it will be found that the feeling of fatigue disappears after getting rid of the anemia according to the necessary treatment planning.

Depression and stress:
Mental illnesses such as depression are the second most common cause of fatigue, as depression can also make people feel tired.

Thyroid diseases:
Endocrine diseases, especially hypothyroidism, cause a person to feel very tired.

It is also said that hypothyroid patients have people around them who describe them as lazy. These are people who are unable to go about their normal chores, find it difficult to get up and don’t feel able to go about their daily chores.

Also, diabetes is an endocrine disease where you find diabetics constantly tired and these patients feel tired, exhausted and weak, even their daily lives can be interrupted when sugar levels are high.

Fatigue can also be a symptom of some early oncological diseases as rapidly growing cancer cells can disrupt all of the patient’s body systems causing fatigue.

heart disease
Fatigue is one of the main symptoms of heart failure and is one of the first signs of heart disease.

Whether it is valve lesions or cardiovascular disease, it causes fatigue because it prevents the heart from meeting its oxygen needs.

Even heart disease medications such as antihypertensives strain the muscles and tire the body as if they are telling the muscles to stop working properly.

Mental health problems:
Fatigue can occur as a result of stress, sadness, alcohol or drug abuse, anxiety, boredom, and disturbances that occur as a result of stressful events such as divorce. Many people develop mental illness due to insomnia.

Lack of sleep:
Working late at night, working shifts, disturbed sleep caused by long-haul flights, and sleep apnea may cause drowsiness, which is accompanied by fatigue and exhaustion.

Chronic pain:
Patients with chronic pain often wake up at night and usually appear tired.

Fatigue persists due to the double episode of pain and lack of sleep. The main symptom of some diseases is fibromyalgia and it is associated with obstructive sleep apnea, which makes the symptoms of fatigue worse.

Overweight or underweight:
Being overweight increases the risk of fatigue and tiredness due to various reasons and these include that there is more stress on joints and muscles as a result of the increase in body weight.

At the same time, people who are underweight can tire easily due to their condition. Eating disorders, cancer, chronic diseases, and hyperthyroidism associated with being underweight can cause extreme fatigue.

Infectious diseases:
Infectious diseases that occur in the body for various reasons are among the common causes of fatigue and exhaustion, including:

Lever Inflammation.
Inflammation of the inner surface of the heart.
Peripheral inflammation.
Parasitic diseases.
Immunodeficiency diseases.