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Physical activity and fatigue

Physical activity and fatigue

Physical activity is exercise in which we use our bodies actively, so that our muscles, heart, lungs and other organs work more efficiently.

Physical activity can be easy or difficult and can be done through a variety of activities, such as walking, running, swimming, cycling or even training at the gym.

Regular physical activity has many benefits for our health.

Exercise reduces the risk of heart disease, diabetes and obesity, improves blood pressure and cholesterol levels, and reduces stress and depression. Regular exercise helps to maintain muscle mass, joint mobility and balance, which helps older people to maintain their independence.

Physical activity also has a positive impact on mental health.

It helps improve mood through the release of endorphins and boosts brain power. For the human brain, exercise is like a “doping agent” that stimulates brain function and helps fight stress.

Physical activity paradoxically gives you energy in the long term, as active exercise increases the body’s energy levels and improves stamina.


However, after exercise, muscle aches and a feeling of fatigue can occur, leading to temporary tiredness. If the body is moving regularly, the overall improvement in strength and endurance will result in less fatigue during daily activities, i.e. increased stamina.

During exercise, oxygen and nutrients are transported to the muscles through the bloodstream.

Muscle energy is stored in the form of glycogen, which is used by the body during active exercise. The glycogen and fat stored in the muscles provide energy for the muscles to use continuously during exercise. The amount of energy released during muscle movement is limited, however, and when muscle reserves are depleted, the muscles let us know this by feeling exhausted and tired.

Physical activity and fatigue
Physical activity and fatigue
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Lack of sleep and fatigue

Lack of sleep and fatigue

Sleep deprivation and fatigue can have a serious impact on physical and mental health.

The effects of sleep deprivation and fatigue can include:

Reduced attention and concentration: sleep deprivation and fatigue reduce brain power, making thinking and decision-making difficult and slow.

Reduced memory and learning ability: sleep deprivation and fatigue disrupt the hippocampus, the brain region responsible for memory and learning. Therefore, people who are sleep-deprived or fatigued have a harder time remembering, learning and applying the knowledge they have acquired.

Emotional instability: sleep deprivation and fatigue can also affect emotional stability. This can cause symptoms of irritability, anxiety and depression.

Reduced immune function: sleep deprivation and fatigue can weaken the immune system, which can increase the risk of health problems, including common infections and autoimmune diseases.

Increased risk of accidents: sleep deprivation and fatigue can also increase the risk of accidents, especially in transport. Drowsiness reduces alertness, increases reaction time and ultimately reduces driving ability.

Physical exhaustion: sleep deprivation and fatigue can lead to long-term exhaustion, general weakness and reduced physical performance.

For these reasons, it is important that everyone gets enough rest and sleep to avoid sleep deprivation and fatigue.

Sleep deprivation can develop for a variety of reasons, some of which include:

Lifestyle factors: lifestyle factors such as poor sleep habits, excessive caffeine or alcohol consumption, inactivity and an irregular lifestyle are some of the most common causes of sleep deprivation.

Stress and anxiety: stress and anxiety are other common causes of sleep deprivation. Excessive stress and anxiety make it difficult to fall asleep and can lead to wakefulness due to constant thoughts.

Health problems: sleep deprivation can also be caused by health problems such as sleep apnoea, reflux, joint pain or night sweats.

Medications: certain medications, such as antidepressants, ADHD medications, antihypertensives and corticosteroids, can also cause sleep deprivation.

Weather conditions: weather conditions can also affect sleep. Temperatures that are too hot or too cold, high humidity and noisy environments can all make it difficult to fall asleep and sleep quality can be affected.

Hormonal changes: hormonal changes, such as menopause or pregnancy, can also cause sleep problems.

Lack of sleep and fatigue
Lack of sleep and fatigue
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Causes and types of fatigue

Fatigue can have many causes

The feeling of fatigue is usually a state of drowsiness or exhaustion that makes a person feel less able to carry out physical or mental activities.


Fatigue can have a variety of causes and can be temporary or long-term, but is usually caused by a combination of factors, including:

Sleep deprivation: if a person does not get enough sleep, sleep deprivation can cause tiredness and drowsiness.

Stress: Increased stress or anxiety can cause fatigue due to the brain’s constant functioning.

Exercise: Intense exercise, especially if the person is not used to it, is associated with fatigue.

Poor eating habits: unhealthy food and insufficient fluid intake do not provide enough nutrition for healthy body function, which can lead to tiredness.

Medical conditions: several medical conditions can cause fatigue, including thyroid problems, anaemia, low blood pressure and malnutrition.

Medications: certain medications, such as antihistamines, antidepressants and blood pressure medications, can also cause tiredness

There are different types of fatigue, which have different causes.

Here are some of them:

General fatigue: this is the most common type, causing a general feeling of exhaustion and drowsiness. It is usually caused by lack of sleep or stress.

Mental fatigue: this condition can be the result of intense brain work. This includes lack of concentration, difficulty remembering and reduced decision-making.

Physical fatigue: Fatigue resulting from physical activity, which may be caused by exercise and heavy physical work. In this case, the body and muscles become fatigued.

Chronic fatigue syndrome: a condition characterised by constant exhaustion and fatigue that is not relieved by rest or sleep. The exact causes are unknown, but chronic tiredness syndrome may be linked to immune system problems and lifestyle.

Mood fatigue: This condition is often caused by depression or emotional stress. Mood tiredness is a condition in which a person feels exhausted, loses interest in life and has difficulty with motivation and energy.

Weather-related tiredness: some people may feel tired and sleepy when the weather changes, for example on rainy or overcast days. Although we don’t fully understand the cause, experts believe that this tiredness may be due to changing times of day, lack of light or changes in barometric pressure.

Fatigue can have many causes
Fatigue can have many causes
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What can cause constant fatigue? We’ll find out!

What can cause constant fatigue?

There are many causes of fatigue, but it is often caused by a vitamin or mineral deficiency.

Now we’ll look at what deficiencies can leave you feeling constantly weak and tired.

Vitamins and minerals also play an important role in the proper functioning of the body. If you don’t provide your body with the right daily amount, you may initially only experience confusing symptoms, but later you may develop more serious health problems.

Magnesium is the first to be highlighted.

Magnesium is a very important mineral. It is important for energy production. It helps the nerves and the cardiovascular system to function normally. It also strengthens bones and muscles. Fortunately, it is found in many vegetables such as spinach, pulses and nuts.

Next is potassium, which has several important functions.

It contributes to the acid-base balance and is involved in the transmission of nervous system impulses. It is also needed for muscle function and to supply cells with energy.

It is also very important to mention vitamin B12.

It plays a major role in the formation of red blood cells. Red blood cells carry oxygen to the cells. If you don’t get enough vitamin B12 in your body, less oxygen gets to your tissues, so you’ll be more tired and weaker. Fish, meat, eggs and liver are also very good sources of vitamin B12.

The body only contains a small amount of zinc, but it is essential.

It also plays a major role in DNA synthesis and cell growth. It is also found in meat, liver and eggs.

The unmissable vitamin C is next.

It is best known for protecting against oxidative stress and strengthening the immune system. It’s also important to point out that the body uses vitamin C to produce collagen. If the body doesn’t get enough of it, it will also weaken bones and joints. There is a lot of vitamin C in citrus fruits, tomatoes, peppers and broccoli.

Finally, vitamin D is just as important as vitamin C.

It is needed primarily for bone and immune health. If you don’t have enough of it in your body, you’ll get sick more easily and you’ll feel much weaker and worse. It’s worth taking it through a supplement, as it’s not present in high amounts in any food except sunshine.

What can cause constant fatigue?
What can cause constant fatigue?