Showing posts with label fatigue during the day. Show all posts
Showing posts with label fatigue during the day. Show all posts

Sunday, March 02, 2014

Chronic fatigue syndrome in men and women

Chronic fatigue syndrome, once considered a men's disease, now is known to be present in both men and women.

Previously long-term fatigue was considered a male disorder caused by societal pressures. Today women comprise the majority of these patients, and they feel that their condition is their own fault. Not only has the fatigued patient changed gender. Previously doctors believed that long-term fatigue was a neurological, physical disorder, while today it is categorized primarily as psychological in nature. And while in the past, society was thought to be the cause of the disorder, today the individual is supposedly to blame.
Throughout history some people have suffered from a lack of energy and long-term, physical fatigue. Today these symptoms are classified as myalgic encephalomyelitis (ME) or chronic fatigue syndrome (CFS).
It is commonly thought that chronic fatigue has mainly psychological causes and that it affects perfectionistic women who cannot live up to their own unreasonably high standards.
This has not always been the case. Just over 100 years ago it was primarily upper class men in intellectual professions who were affected. "Neurasthenia," as the condition was called at the time, was a physical diagnosis with high status.
No longer legitimate
"The medical understanding of long-term fatigue has changed. Previously the condition was viewed as a typically male disorder; now it is perceived as a typically female disorder. The diagnosis of neurasthenia, which has a male connotation, was changed to the ME diagnosis, which has a female connotation," explains Olaug S. Lian, a sociologist and professor at UiT The Arctic University of Norway.
Together with Hilde Bondevik of the University of Oslo, Lian has studied how the view of women and perceptions of the body, gender and femininity in two different historical periods have been manifested in the medical understanding of long-term chronic fatigue.
"Long-term fatigue was viewed as a legitimate disorder, a result of the heroic efforts of the upper class male. Today, it is a stigmatizing disorder, understood as an expression of women's lack of ability to cope with their lives, a kind of breach of character," says Lian.
Not only has the fatigued patient changed gender. Previously doctors believed that long-term fatigue was a neurological, physical disorder, while today it is categorized primarily as psychological in nature. And while in the past, society was thought to be the cause of the disorder, today the individual is supposedly to blame.
What happened to cause this change?
Upper class diagnosis
At the end of the 1800s neurasthenia was the most widespread diagnosis for long-term fatigue. Neurologists believed the condition was caused by a physical, neurological disease that affected the entire body, causing intense, long-term fatigue.
Although women were also diagnosed with the disorder, the typical patient was a man, and not just any kind of man. He was "civilized, refined, and educated, rather than of the barbarous and low-born and untrained," according to neurologist George Beard.
Society was to blame
Doctors at the time believed that the cause of the disorder could be found in a rapidly changing society -- urbanization, industrialization and women's entry into working life.
Quite simply, modern civilization ran roughshod over the nervous system of upper class men, who were overstimulated by too much pressure and activity and too little sleep and rest.
"It was regarded as both legitimate and understandable that even the 'great men' could fall apart as a result of long-term, difficult intellectual work. It was viewed as positive that the body sent signals when the burden was too great. The body was viewed as an electrical fuse box and the thinking was that it was better for one fuse to burn out rather than for the house to catch on fire," says Lian.
Different genders, different causes
The comments about the diagnosis also revealed past understandings of biological gender differences. Women could get neurasthenia from sexual frustration, while men could get it from excessive sexual activity, including masturbation.
Moreover, there was a connection between gender and class.
"To simplify a bit, we can say that it was mainly middle class men and working class women whose diagnosis of neurasthenia was explained by overwork. For working class men it was due to sexual escapades, and for middle class women the cause given was heredity or 'women's issues'," explains Lian.
The fall of neurasthenia
Neurasthenia lost its popularity as a diagnosis in the early 1900s. One reason for this was that psychiatry became a medical field in its own right.
"Psychiatry took neurasthenia with it and changed its definition from a physical to a psychological condition. Since women were regarded as psychologically weaker and therefore more disposed to mental illness, the disorder became a female problem," says Lian.
Fight over definitions
Today ME is the most common name for the disorder, defined as long-term, intense fatigue that cannot be directly linked to a well-defined illness and that does not disappear with rest. The condition is chronic, it cannot be cured with medical treatment and there is disagreement as to the cause.
"The lack of scientifically generated findings, medical explanations and effective treatment make ME a diagnosis with low status and low legitimacy within the medical community," says Lian.
Currently the main theory is that ME results from an inability to handle stress and that perfectionistic people -- the "good girls" -- are especially at risk. The debate about how ME should be understood and explained is highly polarized, between those who believe that it is an illness caused by infections or vaccination and those who believe that ME has mainly psychological causes.
"I would like to see some humility about what we actually know about the disorder and not present value judgments as facts. Doctors must also be honest and acknowledge that we have very little hard-and-fast knowledge about this condition," states Lian.
Blame and shame
The two historical periods have almost identical depictions of the phenomenon of long-term fatigue, although the names are different. But there is one important difference: the disorder is no longer regarded as a legitimate, anticipated outcome of overwork.
"Today the medical community is searching for explanations of ME at the individual level. The ME patient is depicted as a woman with five-star goals and four-star abilities -- with character traits that make it hard for them to cope with their own lives," says Lian.
"When the entire problem is seen as the patient's fault, the person experiences blame and shame because it is the patient, not society, who is the cause of the illness. It is therefore the individual who is responsible for coping with the illness, such as by changing her own thought patterns," says Lian.
Wrong kind of tired
She points out that the ability to cope with one's own life is an important value in Western culture. Mental disorders, however, are associated with weakness. The current understanding of long-term fatigue is also linked to how we think about tiredness, according to Lian.
"There are strong norms for when you are allowed to be tired and worn out and how you are supposed to show tiredness in daily life. If you have been awake all night with a sick infant, you have a good reason to be tired at work. Other reasons are less legitimate. Workplace reports of absence never state that someone is at the psychologist, while it is completely acceptable to say that someone is at the dentist."
"Being tired for the wrong reasons is seen as a sign of weakness, which must be overcome and hidden. It is in this context that we must understand the medical theories on a lack of coping ability and the objections of ME patients to these theories," says Lian.
She believes such norms often make ME patients feel that the psychological explanation is a burden, although doctors do not necessarily mean for it to have this affect.
"What is it about the ME debate that makes the opposing sides so obstinate?"
"The doctors and patients talk past each other. The doctors think that an ME diagnosis is value neutral, but the patient hears 'it's my fault that I am sick and it's my responsible to get better'. But although most people feel that mental disorders have lower value than somatic disorders, it is not a given that the doctors do," says Lian.
Gendered explanation disappeared?
Although about three of four people who are diagnosed with ME today are women, the explicit, biology-based gendered explanations have disappeared from the debate, according to Lian.
"This may simply be because today we put greater focus on gender equality -- which makes it less legitimate to claim that women are naturally inferior to men," says Lian.
However, she believes that the ME diagnosis embodies a view of women that has long historical roots.
"The profile of the upper class woman from the 1800s who cannot cope with pressure and stress both inside and outside the home is still with us today," says Lian.
Cultural bias
"How can your analysis contribute to the current debate about ME?"
"We show how the medical understanding of fatigue and lack of energy is impacted by the norms and values of society at large, for example, that medical knowledge reflects the view of women in our culture. Norms and values combine with biomedical knowledge in a way that makes it difficult to see what is what," says Lian.
Read more here

Sunday, February 23, 2014

Sleep apnea in MS patients

Recent findings show that sleep apnea can increase fatigue in  multiple sclerosis (MS) patients.

Sleep apnea is common in people with multiple sclerosis and may contribute to their fatigue, a new study shows.
Fatigue is one of the most frequent and debilitating symptoms experienced by MS patients.
The study included 195 people with MS who completed a sleep questionnaire and were assessed for daytime sleepiness, insomnia, fatigue severity and sleep apnea.
One-fifth of the patients had been diagnosed with sleep apnea and more than half were found to have an elevated risk for the condition. The researchers also found that sleep apnea risk was a significant predictor of fatigue severity.
According to the American Academy of Sleep Medicine (AASM), sleep apnea involves decreased or periodic stoppage of airflow during sleep. As muscles relax, soft tissue at the back of the throat may collapse and block the upper airway. Most people with the condition snore loudly.
MS is a chronic, frequently disabling disease that attacks the central nervous system, according to the National Multiple Sclerosis Society. Symptoms range widely, from mild signs such as numbness in the limbs to severe symptoms including paralysis or loss of vision.
The new findings suggest that sleep apnea may be a common but under-recognized contributor to fatigue in MS patients, and doctors should not hesitate to check these patients for sleep problems, study author Dr. Tiffany Braley, an assistant professor of neurology at the University of Michigan Multiple Sclerosis and Sleep Disorders Centers, said in an AASM news release.
"Obstructive sleep apnea is a chronic illness that can have a destructive impact on your health and quality of life," and MS patients at high risk for sleep apnea should undergo a comprehensive sleep evaluation, academy president Dr. M. Safwan Badr said in the news release.
The study appears in the Feb. 15 issue of the Journal of Clinical Sleep Medicine, an AASM publication.
About 400,000 people in the United States have MS, according to the National Multiple Sclerosis Society. Up to 7 percent of men and 5 percent of women have sleep apnea, according to the AASM.
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Thursday, February 13, 2014

Blue light can fight fatigue during the day

A study shows that blue light from phones and computers can alleviate fatigue throughout the day.

Researchers from Brigham and Women's Hospital (BWH) have found that exposure to short wavelength, or blue light, during the biological day directly and immediately improves alertness and performance. These findings are published in the February issue ofSleep.
"Our previous research has shown that blue light is able to improve alertness during the night, but our new data demonstrates that these effects also extend to daytime light exposure," said Shadab Rahman, PhD, a researcher in BWH's Division of Sleep Medicine and lead author of this study. "These findings demonstrate that prolonged blue light exposure during the day has an an alerting effect."
In order to determine which wavelengths of light were most effective in warding off fatigue, the BWH researchers teamed with George Brainard, PhD, a professor of neurology at Thomas Jefferson University, who developed the specialized light equipment used in the study. Researchers compared the effects of blue light with exposure to an equal amount of green light on alertness and performance in 16 study participants for 6.5 hours over a day. Participants then rated how sleepy they felt, had their reaction times measured and wore electrodes to assess changes in brain activity patterns during the light exposure.
The researchers found that participants exposed to blue light consistently rated themselves as less sleepy, had quicker reaction times and fewer lapses of attention during the performance tests compared to those who were exposed to green light. They also showed changes in brain activity patterns that indicated a more alert state.
"These results contribute to our understanding of how light impacts the brain and open up a new range of possibilities for using light to improve human alertness, productivity and safety," explained Steven Lockley, PhD, neuroscientist at BWH and senior investigator of the study. "While helping to improve alertness in night workers has obvious safety benefits, day shift workers may also benefit from better quality lighting that would not only help them see better but also make them more alert."
Researchers note that the next big challenge is to figure out how to deliver better lighting. While natural light is ideal, many people do not have access to daylight in their schools, homes or work places. In addition to improvements in daylight access, the advent of new, more controllable lighting technologies may help enable researchers to develop 'smart' lighting systems designed to maximize the beneficial effects of light for human health, productivity and safety.
Read more here