Fatigue is a symptom of an underlying disease and is described in many ways from feeling weak to being constantly tired or lacking energy. There may be other associated symptoms depending upon the underlying cause.
Signs of physical and emotional exhaustion:
- Chronic fatigue. In the early stages, you may feel a lack energy and feel tired most days.
- Forgetfulness/impaired concentration and attention.
- Physical symptoms.
- Increased illness.
- Loss of appetite.
Mental Fatigue Causes Perceived Physical Exhaustion. Tough mental tasks can cause people to tire more quickly at physical exercise, a new study suggests.
Others feel tired only after an attack. Still others feel extreme fatigue, often finding they need to nap hours upon hours extra - or feeling as though they can't focus on life because of their tiredness. Feeling tired is a natural body reaction, and one that can often be caused by stress and anxiety.
If muscle weakness is the result of pain, the person may be able to make muscles work, but it will hurt. Fatigue is a feeling of tiredness or exhaustion or a need to rest because of lack of energy or strength. Fatigue may result from overwork, poor sleep, worry, boredom, or lack of exercise.
If chronic fatigue syndrome gives you muscle and joint pain, your doctor might suggest over-the-counter pain relievers, such as ibuprofen, aspirin, or acetaminophen.
Fatigue is often associated with weakness in muscles, which again require more energy. Secondary fatigue is caused by the effect of living with MS. For instance, MS symptoms such as depression, being in pain or by having sleep disturbed by spasms or needing to go to the toilet more often can all make fatigue worse.
In muscle tissue, the depletion of glycogen (stored glucose), a source of energy for muscle cells, and the accumulation of lactic acid, which is produced through the breakdown of glucose, was long thought to the cause of muscle fatigue, but it is now known that the lactic acid produced is used as an energy source as
Because some people develop chronic fatigue syndrome after having a viral infection, researchers question whether some viruses might trigger the disorder. Suspicious viruses include Epstein-Barr virus, human herpes virus 6 and mouse leukemia viruses. No conclusive link has yet been found. Immune system problems.
Fatigue can cause a vast range of other physical, mental and emotional symptoms including:
- chronic tiredness or sleepiness.
- sore or aching muscles.
- muscle weakness.
- slowed reflexes and responses.
- impaired decision-making and judgement.
- moodiness, such as irritability.
If you want more energy, look at your diet and make sure you're following these basic guidelines:
- Drink lots of water. A dehydrated body functions less efficiently.
- Be careful with caffeine.
- Eat breakfast.
- Don't skip meals.
- Don't crash diet.
- Eat a healthy diet.
- Don't overeat.
- Eat iron rich foods.
Self-help tips to fight tiredness
- Eat often to beat tiredness.
- Get moving.
- Lose weight to gain energy.
- Sleep well.
- Reduce stress to boost energy.
- Talking therapy beats fatigue.
- Cut out caffeine.
- Drink less alcohol.
Substrate shortage is one of the causes of metabolic fatigue. Substrates are depleted during exercise, resulting in a lack of intracellular energy sources to fuel contractions. In essence, the muscle stops contracting because it lacks the energy to do so.
Hypothyroidism is a disease in which thyroid gland does not produce enough thyroid hormone. Thyroid hormones control your metabolism so that when levels are low, you may have symptoms of tiredness, weight gain, and feeling cold. Making the condition even more confusing, hypothyroidism can mimic depression symptoms.
When it's blocked, it's no longer able to equalize pressure in the ear and maintain balance in your body. These middle-ear disturbances can cause symptoms of dizziness in those suffering from allergies, colds, and sinus infections. Lightheadedness may also be a symptom of allergies.
Potential causes of muscle weakness
- chronic fatigue syndrome.
- muscular dystrophies.
- hypotonia, a lack of muscle tone that's usually present at birth.
- myasthenia gravis, an autoimmune and muscular disorder.
- peripheral neuropathy, a type of nerve damage.
- neuralgia, or sharp burning or pain in one or more of your nerves.
Try some of these 12 jitter-free tips to take the edge off sleepiness.
- Get Up and Move Around to Feel Awake.
- Take a Nap to Take the Edge Off Sleepiness.
- Give Your Eyes a Break to Avoid Fatigue.
- Eat a Healthy Snack to Boost Energy.
- Start a Conversation to Wake Up Your Mind.
- Turn Up the Lights to Ease Fatigue.
During early pregnancy, hormonal changes are likely the cause of fatigue. Your body is producing more blood to carry nutrients to your growing baby. Your blood sugar levels and blood pressure are also lower. Hormones, especially increased progesterone levels, are responsible for making you sleepy.
Do seasonal allergies cause you to feel tired all the time? But fatigue, sinus pain and asthma also result from allergy. Symptoms may interfere with your sleep, which can cause fatigue, but an allergic reaction itself can release chemicals in your body that cause fatigue.
In mild cases, it can escape detection. But as iron deficiency becomes more severe – and if left uncorrected – symptoms can escalate to include severe fatigue, headache, chest pain and increased heart rate. Besides iron, vitamin B12 or a folic acid deficiency can also lead to anemia.