Muscle weakness is a lack of strength in the muscles. They may not contract or move as easily as before. Some chronic medical conditions can cause the muscles to wear out more quickly or cause a person to feel fatigued. In other cases, an infection may cause the muscles to falter. Other symptoms of anemia include:. This diagnosis refers to unexplained fatigue, or fatigue that a doctor cannot relate to a medical condition.
Another name for it is myalgic encephalomyelitis. People with chronic fatigue syndrome experience severe tiredness and sleep problems. Other symptoms include muscle weakness, pain, dizziness, and problems concentrating.
Electrolytes help ensure that the muscles, nerves, heart, and brain all function correctly. Having altered levels of electrolytes — such as calciumpotassiumsodium, and magnesium — can cause muscle weakness.
Diabetes occurs when the body does not make enough insulin or does not use insulin appropriately. It can cause nerve damage that may result in muscle weakness. Fibromyalgia is a chronic condition that causes muscle pain and weakness in addition to other symptoms, such as:. Hypothyroidismor an underactive thyroid, can cause muscle weakness and cramping.
These symptoms may get worse with exercise and physical activity. Problems with kidney function can cause metabolic waste products, such as creatinine, to build up in the muscles.
This can result in muscle twitching and weakness. Sleep disorders, such as narcolepsy and insomniacan result in daytime muscle weakness and fatigue. A person who needs to stay in bed due to a medical condition may also experience muscle weakness. This results from not using the muscles as regularly as usual.Framing your weaknesses positively can be challenging, but when you combine self-awareness with an action plan, you can quickly stand apart from other job applicants.
The key to preparing for this question is to identify weaknesses that still communicate strength. Here are a few examples of the best weaknesses to mention in an interview:.
While employers may not love the idea of having an employee who is preoccupied with the finer points, a candidate who assures quality and strives for balance can be a great asset. At the same time, though, last-minute reviews can help eliminate errors and make for a more refined finished product. I can always find something that needs to be improved or changed. To help myself improve in this area, I give myself deadlines for revisions.
Helping colleagues on projects and properly managing your workload is an artful balance. In the past, this has led me to feel stressed or burnt out. To help myself improve in this area, I use a project management app so I can visualize how much work I have at any given moment and know whether or not I have the bandwidth to take on more. While expressing outward stress or frustration over missed deadlines can be considered a weakness, employers value workers that place importance on deadlines and strive to keep projects within the planned timeline.
Each candidate has areas to improve upon in their expertise. A few common areas people need experience in include:. Lack of confidence is a common weakness, especially among entry-level contributors. Experiencing a lack of confidence can sometimes cause inefficiencies in your work. For example, you might feel unqualified to speak up at an important meeting when your idea could help the team to achieve a goal.
While being humble when working with others can be helpful, it is also necessary to maintain a certain amount of confidence to do your job at an optimal level.
If this is the weakness you choose to present in your interview, emphasize why you value confidence, your understanding of the value you offer, and ways you have practiced displaying confidence in the workplace even when you might not always feel it. It has been helpful for me to keep a running document of the impact I have made on my team and at my organization to better understand why I should be confident about the skills and unique talents I bring to the table.
I have also made it a point to voice my ideas and opinions during meetings when I feel they are appropriate and will add value to the conversation. Asking for help is a necessary skill both when you are lacking expertise in a certain area and when you are feeling burned out or cannot handle your workload.
Knowing when and how to ask for help shows strong self-awareness and helps the organization by getting ahead of a possible inefficiency. While having a strong work ethic and being independent are positive qualities, it is better for the business to know when to ask for help.
If you know it has been difficult to ask for help in the past, explain why you know it is beneficial and the ways you have tried to improve this skill. I have learned that it is much more beneficial both for me and the business to reach out when I do not understand something or feel burned out with my workload.
I also understand that there are many experts around me that have specific knowledge and skills that can make my work better. While I am still working on it, I have been able to produce more high-quality work as a result of getting help from those around me. Even the most flexible people can have trouble working with others that have certain characteristics or personality traits.
Having good teamwork skills also means having a strong awareness of how you work with others and ways you can adjust your approach to better serve the organization. If this has been a weakness of yours in the past, explain the personality types you have had trouble working with and quickly identify the reasons why. Then discuss the ways you have adjusted your communication or work style to better work towards a common goal together.
While I understand diversity in personalities makes a business strong, I tend to quiet my own ideas and opinions around louder colleagues. To combat this, I have made it a point to spend more time with colleagues I feel uncomfortable working with. By learning more about them, their communication style and motivations, I am better able to collaborate with these personality types so that we both equally contribute our strengths and skills.
While it is certainly honorable and shows a strong work ethic to spend your time and energy on work, it is also necessary to prioritize resting, going on vacation, spending time with your family and enjoying hobbies.
Doing so can help you feel refreshed when you are at work and can increase motivation, creativity and support a positive outlook. If this is the weakness you choose to present during your interview, explain the ways you have learned to balance life and work and how you have seen your work improve as a result.By Body Part. Arm weakness can limit the range of motion of your arm and affect your daily activities.
Causes for weakness in arms include trauma from an injury, repetitive strain injury, nerve damage or compression in the neck or upper back, or blockage in the bloodstreams. Left arm weakness with chest pain may need immediate medical attention. Whether you're struggling to shampoo your hair or grab a heavy box from the garage shelf, arm weakness can be a concerning symptom.
Arm weakness, sometimes called paresis or palsy, is the inability to raise your arms all the way up. It does not include being unable to move the arms at all, which is called paralysis.
Depending on your accompanying symptoms, weakness in both arms is usually not as concerning as sudden weakness in just one arm. Free, private and secure to get you the best way to well. Learn about our technology. The blockage or rupture may cause severe symptoms that do not go away and must be treated immediately. The blockage may be temporary, or transient, and clear up on its own after a few hours or minutes.
However, it should still be treated right away since it is a serious warning signal. These conditions may cause pain in the upper back and neck.
The arm may seem weak since you're trying not to use it, or are "guarding" it because it causes pain in the back and neck when moved. The brachial plexus is a web of nerves between the neck and shoulder, connecting the spinal cord nerves to the arm. There is one web on each side of the neck. Any injury that forces the shoulder to stretch down, and the neck to stretch up and away, can damage these nerves and cause brachial plexopathy.
Sports injuries and car accidents are often involved. Inflammation, tumors, and radiation treatment can also damage the brachial plexus. Milder symptoms include numbness and weakness in the arm, with a shocklike stinging or burning sensation. A more severe injury can cause paralysis and loss of feeling in the arm, with pain in some parts of the arm, hand, and shoulder.
These symptoms should be seen by a medical provider since permanent damage can result if the injuries are not treated. Treatment usually involves rest and physical therapy. Surgery may be necessary to remove scar tissue or repair the damaged nerves. Top Symptoms: pain in one arm, shoulder pain that shoots to the arm, arm weakness, numbness in one arm, shoulder pain.
Symptoms that never occur with brachial plexopathy shoulder nerve issue : pain in the front middle part of the neck. Top Symptoms: upper arm pain from overuse, upper arm weakness, upper arm numbness. Symptoms that always occur with repetitive strain injury of the upper arm: upper arm pain from overuse.
Symptoms that never occur with repetitive strain injury of the upper arm: upper arm injury, severe upper arm pain. A pinched nerve in the neck is also called cervical radiculopathy. It means that a nerve in the neck, at a point where it branches off from the spinal cord, is being compressed by the surrounding bones, muscles, or other tissues. It can be caused by a traumatic injury, such as from sports or an automobile accident, especially if the injury results in a herniated disk.Since stationarity is an assumption underlying many statistical procedures used in time series analysisnon-stationary data are often transformed to become stationary.
The most common cause of violation of stationarity is a trend in the mean, which can be due either to the presence of a unit root or of a deterministic trend.
In the former case of a unit root, stochastic shocks have permanent effects, and the process is not mean-reverting. In the latter case of a deterministic trend, the process is called a trend-stationary processand stochastic shocks have only transitory effects after which the variable tends toward a deterministically evolving non-constant mean. A trend stationary process is not strictly stationary, but can easily be transformed into a stationary process by removing the underlying trend, which is solely a function of time.
Similarly, processes with one or more unit roots can be made stationary through differencing. An important type of non-stationary process that does not include a trend-like behavior is a cyclostationary processwhich is a stochastic process that varies cyclically with time.
For many applications strict-sense stationarity is too restrictive. Other forms of stationarity such as wide-sense stationarity or N -th-order stationarity are then employed. The definitions for different kinds of stationarity are not consistent among different authors see Other terminology. White noise is the simplest example of a stationary process. An example of a discrete-time stationary process where the sample space is also discrete so that the random variable may take one of N possible values is a Bernoulli scheme.
Other examples of a discrete-time stationary process with continuous sample space include some autoregressive and moving average processes which are both subsets of the autoregressive moving average model. Models with a non-trivial autoregressive component may be either stationary or non-stationary, depending on the parameter values, and important non-stationary special cases are where unit roots exist in the model.
In Eq. A weaker form of stationarity commonly employed in signal processing is known as weak-sense stationaritywide-sense stationarity WSSor covariance stationarity.
WSS random processes only require that 1st moment i. Any strictly stationary process which has a defined mean and a covariance is also WSS.Custom one ui theme installer themes
The main advantage of wide-sense stationarity is that it places the time-series in the context of Hilbert spaces. The same result holds for a discrete-time stationary process, with the spectral measure now defined on the unit circle.
When processing WSS random signals with lineartime-invariant LTI filtersit is helpful to think of the correlation function as a linear operator.
Since it is a circulant operator depends only on the difference between the two argumentsits eigenfunctions are the Fourier complex exponentials. Additionally, since the eigenfunctions of LTI operators are also complex exponentialsLTI processing of WSS random signals is highly tractable—all computations can be performed in the frequency domain. Thus, the WSS assumption is widely employed in signal processing algorithms. This may be summarized as follows:.
The terminology used for types of stationarity other than strict stationarity can be rather mixed. Some examples follow. One way to make some time series stationary is to compute the differences between consecutive observations.
This is known as differencing. Transformations such as logarithms can help to stabilize the variance of a time series. Differencing can help stabilize the mean of a time series by removing changes in the level of a time series, and so eliminating trend and seasonality.
One of the ways for identifying non-stationary times series is the ACF plot. For a stationary time series, the ACF will drop to zero relatively quickly, while the ACF of non-stationary data decreases slowly. From Wikipedia, the free encyclopedia. Probability and Stochastic Processes.Html dropdown
Spectral Analysis and Time Series.Weak currencies are often thought to be those of nations with poor economic fundamentals or systems of governance. A weak currency may also be encouraged by a country seeking to boost its exports in global markets. In practice, currencies weaken and strengthen against each other for a variety of reasons, although economic fundamentals do play a primary role.
Fundamentally weak currencies often share some common traits. This can include a high rate of inflationchronic current account and budget deficitsand sluggish economic growth. While a temporary weak phase in a major currency provides a pricing advantage to its exporters, this advantage can be wiped out by other systematic issues. Currencies can also be weakened by domestic and international interventions. For example, China intervened to weaken its currency in after a long period of strengthening.
Moreover, the imposition of sanctions can have an immediate effect on a country's currency. As recently assanctions weakened the Russian ruble, but the real hit was in when oil prices collapsed and the annexation of Crimea set other nations on edge when dealing with Russia in business and politics. Perhaps the most interesting recent example is the fate of the British Pound as Brexit neared.
The British pound GBP was a stable currency, but the vote to leave the European Union EU set the pound on a very volatile path that has seen it weaken in general as the process of leaving has plodded along. Like most assets, a currency is ruled by supply and demand.
When the demand for something goes up, so does the price. If most people convert their currencies into yen, the price of yen goes up, and yen becomes a strong currency. Because more dollars are needed to buy the same amount of yen, the dollar becomes a weak currency.
Currency is, after all, a type of commodity. For example, when a person exchanges dollars for yen, he is selling his dollars and buying yen. The increase in sales may boost economic growth and jobs while increasing profits for companies conducting business in foreign markets.
Weakness and Fatigue
For example, when purchasing American-made items becomes less expensive than buying from other countries, American exports tend to increase. In contrast, when the value of a dollar strengthens against other currencies, exporters face greater challenges selling American-made products overseas.
Currency strength or weakness can be self-correcting.AJR - \
Because more of a weak currency is needed when buying the same amount of goods priced in a stronger currency, inflation will climb as nations import goods from countries with stronger currencies. Eventually, the currency discount may spur more exports and improve the domestic economy provided that there are not systematic issues weakening the currency. In contrast, low economic growth may result in deflation and become a bigger risk for some countries.
When consumers begin expecting regular price declines, they may postpone spending, and businesses may delay investing. A self-perpetuating cycle of slowing economic activity begins and that will eventually impact the economic fundamentals supporting the stronger currency.
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Personal Finance. Your Practice. Popular Courses. What Is a Weak Currency?Asthenia, also known as weakness, is the feeling of body fatigue or tiredness. A person experiencing weakness may not be able to move a certain part of their body properly.
Asthenia is best described as a lack of energy to move certain muscles or even all muscles in the body. Some people experience asthenia in a certain area of their body, such as the arms or legs. Others may experience full-body weakness, which is often the result of a bacterial or viral infection such as influenza or hepatitis.
Although weakness caused by cancer may appear slowly over an extended amount of time, weakness caused by a heart attack or stroke often occurs immediately. In addition to experiencing weakness, other symptoms such as difficulty breathing, pain, and irregular heartbeat may occur. Call if you experience sudden weakness. You may also experience:. Full-body weakness causes you to feel run down, similar to the feeling you get when you have the flu.
There are many treatment options for weakness. Determining the underlying cause helps your doctor determine the best treatment method. This will help your doctor better understand what may be causing you to feel weak. Your doctor may request that you give a urine sample.
They may also request a blood sample and send it to a lab for testing. The lab will test these samples for signs of infection and possible medical conditions that may cause weakness. Imaging tests may include:. You may also need medication to increase your blood pressure. At this point, the weakness may begin to subside. You may need a blood transfusion if your anemia is severe.
This treatment consists of receiving donor blood through an IV line. If cancer is the cause of your weakness, your doctor will discuss your treatment options. The stage, location, and body structure involved all help to determine the best course of treatment. Treatment options for cancer include:. Not all cases of weakness require treatment. If your weakness is due to a cold or the flu, treatment may not be necessary. Some of the causes of weakness are part of a normal life.
For example, if you have weakness due to a cold, time and rest should eventually clear up your weakness. If your weakness originates from a more serious condition, seeing your doctor early and regularly can help you recover more quickly. Taking care of your physical health is a good preventive measure. Drinking plenty of fluids, getting adequate rest, and exercising regularly can help your recover from weakness and also prevent it.
Feeling dizzy and tired at the same time could be a symptom of various conditions. Read on to learn about possible causes. Muscle fatigue is a symptom that decreases your muscles' ability to perform over time. As you exercise, over time your muscles may begin to feel….Sudden leg weakness can be a sign of a serious underlying health issue and should be evaluated by a doctor as soon as possible.
In some cases, it may indicate a medical condition that requires emergency care. A slipped disc occurs when the gelatinous substance inside the discs that cushion your vertebrae protrudes through a tear in the exterior, causing pain. This can happen because of injury or age-related degenerative changes in the spine. If the slipped disc compresses a nearby nerve, it can cause pain and numbness along the affected nerve, often down your leg.
See your doctor if neck or back pain extends down your arm or leg or you experience numbness, tinglingor weakness.
Conservative treatment, including rest followed by physical therapy, usually relieves symptoms within a few weeks. A stroke occurs when the blood supply to your brain is cut off because of a blockage, or a blood vessel in the brain bursts. It can cause sudden numbness or weakness in the face, arms, or legs. Other signs and symptoms of stroke include:. If you or someone else is having a stroke, call immediately.
Prompt treatment is vital to recovering from a stroke. Early treatment can reduce the risk of long-term complications. The weakness can spread quickly and eventually paralyze the whole body if not treated right away. See a doctor right away if you experience any of these symptoms. Multiple sclerosis MS is an autoimmune disease of the central nervous system. In MS, your immune system attacks the myelin, which is the protective sheath around your nerves.
MS can cause a wide range of symptoms that vary from person to person. Numbness and fatigue are the most common symptoms. Other symptoms include:. MS is a lifelong condition that can include periods of relapses of symptoms that are followed by periods of remission, or it can be progressive. Treatments for MSincluding medication and physical therapycan help you regain strength in your legs and slow progression of the disease. Sciaticawhich is caused by a pinched nerve in the lower backis pain that radiates along the sciatic nerve, which extends from your lower back through your hips and buttocks and down the legs.Paddle shifters tutorial
It usually affects one side of your body. Sciatica can range from a dull ache to sharp burning pain, and worsen with prolonged sitting or sneezing. You may also experience leg numbness and weakness.
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