Define Energy as like Weakness and fatigue, overcoming mental, physical and emotional exhaustion by restoring proper organ functions.

Weakness and Fatigue

Uploaded Image Weakness and fatigue are terms that are often used as if they mean the same thing. But in fact they describe two different sensations. It is important to know exactly what you mean when you say "I feel weak" or "I am fatigued" because it can help you and your doctor narrow down the possible causes of your symptoms.

Weaknessis a lack of physical or muscle strength and the feeling that extra effort is required to move your arms, legs, or other muscles. If muscle weakness is the result of pain, the person may be able to make muscles work, but it will hurt.
Fatigueis 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. It is a symptom that may be caused by illness, medicine, or medical treatment such as chemotherapy. Anxiety or depression can also cause fatigue.

Both weakness and fatigue are symptoms, not diseases. Because these symptoms can be caused by many other health problems, the importance of weakness and fatigue can be determined only when other symptoms are evaluated.

Weakness

General weakness often occurs after you have done too much activity at one time, such as by taking an extra-long hike. You may feel weak and tired, or your muscles may be sore. These sensations usually go away within a few days.

In rare cases, generalized muscle weakness may be caused by another health problem, such as:

A problem with the minerals (electrolytes) found naturally in the body, such as low levels of potassium or sodium.
Infections, such as a urinary tract infection or a respiratory infection.
Problems with the thyroid gland, which regulates the way the body uses energy.
- A low thyroid level (hypothyroidism) can cause fatigue, weakness, lethargy, weight gain, depression, memory problems, constipation, dry skin, intolerance to cold, coarse and thinning hair, brittle nails, or a yellowish tint to the skin.
- A high thyroid level (hyperthyroidism) can cause fatigue, weight loss, increased heart rate, intolerance to heat, sweating, irritability, anxiety, muscle weakness, and thyroid enlargement.
Guillain-Barre syndrome, a rare nerve disorder that causes weakness in the legs, arms, and other muscles and that can progress to complete paralysis.
Myasthenia gravis, a rare, chronic disorder that causes weakness and rapid muscle fatigue.

Muscle weakness that is slowly getting worse requires a visit to a doctor.

Sudden muscle weakness and loss of function in one area of the body can indicate a serious problem within the brain (such as a stroke or transient ischemic attack) or spinal cord or with a specific nerve in the body.

Fatigue

Fatigue is a feeling of tiredness, exhaustion, or lack of energy. You may feel mildly fatigued because of overwork, poor sleep, worry, boredom, or lack of exercise. Any illness, such as a cold or the flu, may cause fatigue, which usually goes away as the illness clears up. Most of the time, mild fatigue occurs with a health problem that will improve with home treatment and does not require a visit to a doctor.

A stressful emotional situation may also cause fatigue. This type of fatigue usually clears up when the stress is relieved.

Many prescription and non-prescription medicines can cause weakness or fatigue. The use of alcohol, caffeine, or illegal drugs can cause fatigue.

A visit to a doctor usually is needed when fatigue occurs along with more serious symptoms, such as increased breathing problems, signs of a serious illness, abnormal bleeding, or unexplained weight loss or gain.

Fatigue that lasts longer than 2 weeks usually requires a visit to a doctor. This type of fatigue may be caused by a more serious health problem, such as:

A decrease in the amount of oxygen-carrying substance (hemoglobin) found in red blood cells (anemia).
Problems with the heart, such as coronary artery diseaseor heart failure, that limit the supply of oxygen-rich blood to the heart muscle or the rest of the body.
Metabolic disorders, such as diabetes, in which sugar (glucose) remains in the blood rather than entering the body's cells to be used for energy.
Problems with the thyroid gland, which regulates the way the body uses energy.
- A low thyroid level (hypothyroidism) can cause fatigue, weakness, lethargy, weight gain, depression, memory problems, constipation, dry skin, intolerance to cold, coarse and thinning hair, brittle nails, or a yellowish tint to the skin.
- A high thyroid level (hyperthyroidism) can cause fatigue, weight loss, increased heart rate, intolerance to heat, sweating, irritability, anxiety, muscle weakness, and thyroid enlargement.
Kidney disease and liver disease, which cause fatigue when the concentration of certain chemicals in the blood builds up to toxic levels.

If fatigue occurs without an obvious cause, it is important to evaluate your mental health. Fatigue is a common symptom of mental health problems, such as anxiety or depression. Fatigue and depression may become so severe that you may consider suicide as a way to end your pain. If you think your fatigue may be caused by a mental health problem, see your doctor.

Check your symptoms to decide if and when you should see a doctor.

Mental Exhaustion

Mental exhaustion can happen to anyone who experiences long-term stress. It can make you feel overwhelmed and emotionally drained, and make your responsibilities and problems seem impossible to overcome.

Feelings of detachment and apathy can wreak havoc on all aspects of your personal and work life.

You may feel trapped in your situation and as if the power to do anything about it is out of your hands, but you can overcome mental exhaustion with some help.

Symptoms

Mental exhaustion causes physical as well as emotional symptoms. It can also impact your behavior, which others may notice even before you do.

Symptoms of mental exhaustion can vary from person to person and often begin to show gradually, creeping up on you during periods of extreme stress. If stress continues to weigh on you, you may reach a point when you feel as though you’re in a dark hole and can’t see your way out.

Many people refer to this as “burnout,” though it’s not officially a recognized medical term.

Even if you’re not experiencing all of the signs and symptoms, it’s important to recognize these are signs that could indicate you are on the path to mental exhaustion or burnout.