We explored the relationship between serum zinc levels and chronic fatigue syndrome (CFS) in a study that compared patients with CFS to normal volunteers. By using an atomic absorption method, we measured serum zinc concentrations and found that those suffering from CFS had significantly lower levels of zinc compared to healthy individuals.
Interestingly, we observed a trend indicating that lower zinc levels correlated with greater CFS severity. Patients also reported a negative correlation between their zinc levels and their subjective experiences of infection. This suggests that zinc plays a role in the immune dysfunction commonly seen in CFS.
Furthermore, we noted that lower serum zinc was associated with higher levels of inflammatory markers and certain defects in the early activation of T cells. Since zinc acts as a potent antioxidant, our findings indicate that CFS is linked to increased oxidative stress in these patients. Given this, it may be beneficial for some CFS patients to consider zinc supplements as part of their treatment approach.
Read More
9
Zinc may reduce long COVID symptoms
Epipharyngeal Abrasive Therapy (EAT) Has Potential as a Novel Method for Long COVID Treatment.
We evaluated the effects of zinc treatment on individuals with long COVID, focusing on how it relates to chronic fatigue syndrome. Our study involved 58 patients who underwent a unique therapy called Epipharyngeal Abrasive Therapy (EAT), which utilized zinc chloride as an anti-inflammatory agent for the epipharynx.
Participants were treated once a week for a month, and we measured the intensity of their symptoms, specifically fatigue, headaches, and attention disorders, using a visual analog scale (VAS). Remarkably, we found that EAT reduced inflammation in the epipharynx and resulted in significant improvements in the reported intensity of these symptoms.
We believe these findings highlight the potential role of zinc in managing symptoms associated with long COVID and possibly chronic fatigue syndrome. While the evidence is encouraging, it remains essential to conduct more in-depth research to truly understand the specific effects of zinc and ensure these benefits are consistently reproducible.
Read More
8
Oral supplement improves long COVID
Potential Anti-Inflammatory and Anti-Fatigue Effects of an Oral Food Supplement in Long COVID Patients.
We conducted a clinical trial to examine how an oral food supplement (OFS) could impact patients suffering from long COVID, particularly focusing on inflammation and fatigue. This was a robust study design, featuring a double-blind, placebo-controlled setup that included 2 capsules of the supplement daily over two months.
The supplement contained a mix of ingredients like rosehip, propolis, royal jelly, zinc, and vitamin C. While zinc was part of the mix, we observed significant results in inflammation reduction through various parameters, such as a decrease in the neutrophil-to-lymphocyte ratio and C-reactive protein levels. However, we couldn’t isolate zinc's effects individually, as it was evaluated alongside other components.
Importantly, there were also noteworthy improvements in patients’ fatigue levels and overall quality of life, as measured by the fatigue severity scale. We found that vitamin D levels rose significantly in participants during the supplement phase, suggesting that the OFS has potential benefits beyond just zinc.
In conclusion, while this study reveals the OFS improved inflammatory symptoms, fatigue, and quality of life, we must recognize that we did not specifically analyze zinc's isolated effects on chronic fatigue syndrome.
Read More
Most Useful Reviews
9
Relieved fatigue symptoms
105 people found this helpful
Excellent! I hesitated to buy this zinc for ages, but after my mother’s passing, I felt extreme fatigue and depression. This supplement has gradually helped to improve my well-being.
Read More
9
Improved symptoms
5 people found this helpful
After more than two months of taking Reishi mushroom and maintaining a healthy diet, I've noticed a significant improvement in my chronic fatigue syndrome symptoms. My periods are regular, and excessive hair growth has decreased. The capsules are small, easy to swallow, and of high quality.
Read More
9
Fatigue relief
1 people found this helpful
I discovered zinc deficiency after unexplained back pain and noticed that fatigue I attributed to age was actually due to this deficiency. After taking this zinc supplement, my chronic fatigue syndrome has gradually improved.
We evaluated the effects of zinc treatment on individuals with long COVID, focusing on how it relates to chronic fatigue syndrome. Our study involved 58 patients who underwent a unique therapy called Epipharyngeal Abrasive Therapy (EAT), which utilized zinc chloride as an anti-inflammatory agent for the epipharynx.
Participants were treated once a week for a month, and we measured the intensity of their symptoms, specifically fatigue, headaches, and attention disorders, using a visual analog scale (VAS). Remarkably, we found that EAT reduced inflammation in the epipharynx and resulted in significant improvements in the reported intensity of these symptoms.
We believe these findings highlight the potential role of zinc in managing symptoms associated with long COVID and possibly chronic fatigue syndrome. While the evidence is encouraging, it remains essential to conduct more in-depth research to truly understand the specific effects of zinc and ensure these benefits are consistently reproducible.
Read More
8
Synbiotics improve post-COVID fatigue
The effects of 3-month supplementation with synbiotic on patient-reported outcomes, exercise tolerance, and brain and muscle metabolism in adult patients with post-COVID-19 chronic fatigue syndrome (STOP-FATIGUE): a randomized Placebo-controlled clinical trial.
We investigated the impact of a 3-month supplementation with a special synbiotic mixture on adults suffering from post-COVID-19 chronic fatigue syndrome (ME/CFS). This study was thoughtfully designed as a placebo-controlled, double-blind trial involving 26 participants. The intention was to see how this synbiotic, which notably contains zinc among other components, would influence patients' overall experiences, exercise tolerance, and metabolism in tissues affected by fatigue.
The promising findings indicated that taking the synbiotic mixture for three months improved metabolism and helped alleviate some clinical features associated with post-COVID fatigue syndrome. However, it's important to note that because zinc was part of this mixture, the study does not allow us to draw clear conclusions about zinc alone and its effects on chronic fatigue syndrome.
While our research shows that synbiotics may offer a safe and beneficial approach to managing symptoms of ME/CFS following COVID-19, further investigations are needed to fully understand the role of each component, including zinc, before making any strong recommendations for its use in this context.
Read More
8
Oral supplement improves long COVID
Potential Anti-Inflammatory and Anti-Fatigue Effects of an Oral Food Supplement in Long COVID Patients.
We conducted a clinical trial to examine how an oral food supplement (OFS) could impact patients suffering from long COVID, particularly focusing on inflammation and fatigue. This was a robust study design, featuring a double-blind, placebo-controlled setup that included 2 capsules of the supplement daily over two months.
The supplement contained a mix of ingredients like rosehip, propolis, royal jelly, zinc, and vitamin C. While zinc was part of the mix, we observed significant results in inflammation reduction through various parameters, such as a decrease in the neutrophil-to-lymphocyte ratio and C-reactive protein levels. However, we couldn’t isolate zinc's effects individually, as it was evaluated alongside other components.
Importantly, there were also noteworthy improvements in patients’ fatigue levels and overall quality of life, as measured by the fatigue severity scale. We found that vitamin D levels rose significantly in participants during the supplement phase, suggesting that the OFS has potential benefits beyond just zinc.
In conclusion, while this study reveals the OFS improved inflammatory symptoms, fatigue, and quality of life, we must recognize that we did not specifically analyze zinc's isolated effects on chronic fatigue syndrome.
Read More
8
Beta-glucan improves cognitive fatigue
Yeast Beta-Glucan Supplementation with Multivitamins Attenuates Cognitive Impairments in Individuals with Myalgic Encephalomyelitis/Chronic Fatigue Syndrome: A Randomized, Double-Blind, Placebo-Controlled Trial.
We conducted a study to explore the potential benefits of beta-glucan supplementation in individuals suffering from chronic fatigue syndrome (ME/CFS). Over 36 weeks, we engaged 65 patients in a randomized, double-blind trial where they received either a daily combination of beta-glucan, vitamin D3, vitamin B6, and zinc, or a placebo that contained only microcrystalline cellulose. This approach allowed us to assess the overall impact of this nutritional supplement on fatigue, sleep quality, anxiety, and cognitive performance.
Our findings were particularly encouraging regarding cognitive fatigue; those who received the beta-glucan supplementation showed a significant improvement in cognitive fatigue symptoms over the study period. While zinc was included in the supplement mix, it makes it challenging to pinpoint its isolated contribution to the benefits observed. Therefore, we caution that any conclusions about zinc’s effects on chronic fatigue syndrome should be drawn with care.
This research provides valuable insights into how yeast-derived beta-glucan might serve as a helpful supplement for patients facing cognitive challenges associated with ME/CFS. Moving forward, further investigations are needed to confirm these outcomes and to better understand the immunometabolic mechanisms at play.
Read More
8
Zinc's limited role in fatigue relief
Effect of Melatonin Plus Zinc Supplementation on Fatigue Perception in Myalgic Encephalomyelitis/Chronic Fatigue Syndrome: A Randomized, Double-Blind, Placebo-Controlled Trial.
We conducted a study to explore how oral supplementation of melatonin combined with zinc affects fatigue in patients with Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS). The trial lasted 16 weeks, involved 50 participants, and was designed as a randomized, double-blind, placebo-controlled study. Patients were divided to receive either melatonin with zinc or a placebo daily.
Throughout the study, we focused on measuring fatigue levels, sleep disturbances, anxiety, and overall quality of life. Our findings highlighted a significant reduction in physical fatigue for those taking the melatonin and zinc combination compared to the placebo group at the end of the treatment period. While the treatment led to an increase in urinary melatonin levels, we did not observe any significant changes in zinc concentrations.
Overall, our results suggest that adding melatonin with zinc could potentially improve the quality of life for those suffering from ME/CFS, primarily by alleviating fatigue symptoms. However, the combination treatment makes it challenging to isolate the specific impact of zinc alone on chronic fatigue syndrome.
Excellent! I hesitated to buy this zinc for ages, but after my mother’s passing, I felt extreme fatigue and depression. This supplement has gradually helped to improve my well-being.
Read More
9
Improved symptoms
5 people found this helpful
After more than two months of taking Reishi mushroom and maintaining a healthy diet, I've noticed a significant improvement in my chronic fatigue syndrome symptoms. My periods are regular, and excessive hair growth has decreased. The capsules are small, easy to swallow, and of high quality.
Read More
9
Fatigue relief
1 people found this helpful
I discovered zinc deficiency after unexplained back pain and noticed that fatigue I attributed to age was actually due to this deficiency. After taking this zinc supplement, my chronic fatigue syndrome has gradually improved.
Read More
9
Enhanced well-being
Since taking Zinc Balance for a month, my well-being has significantly improved. My chronic fatigue syndrome symptoms have reduced, and I feel more energetic. The capsules are simple to swallow, and although pricey, the results are worth it.
Read More
7.5
Effective for healing
4 people found this helpful
If you're dealing with chronic fatigue syndrome or slow-healing wounds, zinc is essential! This trace mineral has various health benefits, including immune support and skin healing. I take one capsule daily and feel well, with no side effects!
Chronic Fatigue Syndrome (CFS), also known as Myalgic Encephalomyelitis (ME), is a complex and debilitating condition characterized by profound fatigue that doesn’t improve with rest and worsens with physical or mental activity. This crippling fatigue is often accompanied by a variety of symptoms, including sleep disturbances, cognitive difficulties, muscle pain, and joint pain. Unlike typical tiredness, the fatigue experienced in CFS is long-lasting, and it can significantly hinder everyday activities and overall quality of life.
The precise cause of CFS remains unknown, but it is believed to be influenced by a combination of genetic, environmental, immunological, and psychological factors. Diagnosis primarily relies on a careful assessment of symptoms, as there are no definitive laboratory tests available. Treatment options focus on symptom management and may include lifestyle changes, physical therapy, medication for pain management, and cognitive behavioral therapy. Given the complexity and variability of the condition, individuals with CFS should consult healthcare professionals who specialize in this area to develop personalized management strategies.
Zinc is a versatile metal known for its various applications in industry and health. It is a bluish-white metallic element represented by the symbol Zn and atomic number 30 on the periodic table. Zinc is primarily used for galvanizing steel to prevent rusting, in the manufacturing of alloys, and as a component in batteries. Additionally, zinc plays a crucial role in biological processes, making it an essential trace element in the human diet. It is involved in immune function, protein synthesis, wound healing, and DNA synthesis, highlighting its importance in maintaining overall health and well-being.
The potential benefits of zinc in managing Chronic Fatigue Syndrome (CFS) are not extensively supported by rigorous scientific evidence. Nonetheless, zinc is an essential mineral involved in numerous biological processes, including immune function and energy metabolism, which may indirectly influence symptoms associated with CFS. Some studies suggest that a deficiency in zinc could exacerbate fatigue or other symptoms, indicating that maintaining adequate levels might be beneficial for overall health and wellbeing.
However, it’s critical to approach zinc supplementation with caution. While some individuals may benefit from taking zinc, especially if they have a documented deficiency, excessive intake can lead to toxicity and adverse effects. Therefore, if you're considering zinc supplements as part of your strategy to manage CFS, it's essential to consult with a healthcare provider. They can help determine appropriate dosage and whether it’s the right move for your health situation, ensuring a balanced approach to your overall care plan.
Based on user reviews, the time it typically takes to see results from taking zinc supplements for Chronic Fatigue Syndrome (CFS) can vary, but many users report noticeable improvements within a month. For instance, one reviewer mentioned significant improvements after taking zinc for just a month, stating they felt a surge in energy and a reduction in CFS symptoms Read Review. Another user noted that after two months of taking a Reishi mushroom supplement in conjunction with a healthy diet, their chronic fatigue symptoms improved substantially Read Review.
While individual experiences will vary, it's clear from the reviews that some users begin to feel better in as little as a few weeks, while others see gradual improvement over a couple of months. Overall, it's common to start noticing positive changes within this timeframe, particularly concerning energy levels and overall well-being.Read Review.
Scientific research has explored the potential benefits of zinc and other supplements for individuals with Chronic Fatigue Syndrome (CFS), but the evidence remains inconclusive. Various studies indicate a relationship between zinc levels and symptom severity in CFS patients, with some showing that lower zinc levels correlate with greater fatigue and immune dysfunction ([7]). A trial examining the effects of a special synbiotic mixture, which included zinc, found improvements in metabolism and fatigue symptoms among individuals suffering from post-COVID fatigue, yet the role of zinc alone could not be isolated ([1]).
Other studies have also recognized the challenges in attributing benefits specifically to zinc, as it was often used in combination with other compounds. For instance, melatonin paired with zinc showed a significant reduction in fatigue levels, but again, the independent effects of zinc were unclear ([5]). While these findings suggest that zinc might play a supportive role in managing CFS symptoms, further research is necessary to clarify its effectiveness and to determine the best approaches for treatment. Until more definitive evidence emerges, zinc supplementation could be considered as part of a broader treatment strategy for some CFS patients, with appropriate medical guidance.
Users have reported a range of improvements in their Chronic Fatigue Syndrome (CFS) symptoms after incorporating zinc supplements into their routine. Many individuals cited increased energy levels and a reduction in fatigue, with one reviewer noting a significant boost in well-being after just one month of use Read Review. Another user experienced a noticeable decrease in afternoon mental fatigue after months of consistent usage Read Review. Others highlighted additional benefits, such as improved mood and skin condition, alongside better energy Read Review.
Multiple reviews indicate that zinc not only aids in addressing typical fatigue but may also contribute positively to overall health by supporting immune function and other bodily processes vital for those with CFS Read Review. For instance, one user noticed a decrease in hair loss in conjunction with their CFS improvements, suggesting that zinc's benefits can extend beyond just fatigue alleviation Read Review. While anecdotal experiences suggest many users have found relief from their symptoms with zinc supplementation, it is essential to remember that results can vary significantly from person to person, and consulting a healthcare professional is advisable before starting any supplement regimen.
Users have reported positive experiences when combining zinc supplements with other supplements in managing Chronic Fatigue Syndrome (CFS). One user noted that after incorporating Reishi mushroom alongside a healthy diet, they experienced significant improvements in CFS symptoms, highlighting the synergistic benefits of supplementing with multiple options for energy support and overall well-being Read Review. Another user mentioned their regret about not choosing a monopreparation for optimal zinc absorption, suggesting that combining zinc with the right formulation can enhance its effectiveness in reducing fatigue Read Review.
Additionally, many users emphasized the vital role of zinc in maintaining energy levels and immune function, which can multiply the benefits when paired with other supplements Read Review. The anecdotal evidence suggests that those struggling with CFS might find it advantageous to consider a comprehensive supplement approach, but it's always advisable to consult with a healthcare professional to tailor a regimen that fits individual health needs.
Users report varying experiences with the dosage of zinc for addressing Chronic Fatigue Syndrome (CFS), highlighting its potential benefits. Many users found that incorporating a zinc supplement into their routine had a significant positive impact on their energy levels and overall well-being. For instance, one user mentioned that after discovering a zinc deficiency, their chronic fatigue symptoms gradually improved with supplementation Read Review. Another noted that taking one capsule daily helped alleviate symptoms and provided good energy levels Read Review.
Despite positive feedback, users have also noted that results can vary greatly between individuals. For example, while some users reported quick improvements after starting zinc, others suggested a more cautious approach, recommending to follow a physician's advice and consider the necessity of copper's role in zinc absorption Read Review. Overall, while there is consensus on zinc's benefits for CFS, determining the right dose seems to depend on individual health conditions and should ideally be guided by medical advice.
9
Enhanced well-being
Since taking Zinc Balance for a month, my well-being has significantly improved. My chronic fatigue syndrome symptoms have reduced, and I feel more energetic. The capsules are simple to swallow, and although pricey, the results are worth it.
9
Improved symptoms
5 people found this helpful
After more than two months of taking Reishi mushroom and maintaining a healthy diet, I've noticed a significant improvement in my chronic fatigue syndrome symptoms. My periods are regular, and excessive hair growth has decreased. The capsules are small, easy to swallow, and of high quality.
7.5
Stronger immunity
I've recently started taking zinc, and it's markedly improved my chronic fatigue syndrome, as my skin condition and energy levels have improved, plus I feel more cheerful. The tablets are easy to swallow.
6
Alleviated fatigue
1 people found this helpful
These non-GMO zinc and copper tablets are easy to take. After months of use, I’ve noticed a reduction in my afternoon mental fatigue. A single tablet after breakfast suffices for my daily needs.
6
Supports immunity
1 people found this helpful
Zinc plays a critical role in over 300 bodily functions, including the immune system and energy levels. People with chronic fatigue syndrome often face deficiencies. This supplement offers a beneficial dosage of zinc and copper for overall health and energy.
7.5
Less hair loss
2 people found this helpful
Excellent! I bought this zinc to address increased hair loss, suspecting a deficiency. These small, easy-to-swallow capsules have seemingly reduced my hair loss and improved my chronic fatigue syndrome symptoms.
6
Improved immunity
10 people found this helpful
I initially bought this zinc for its benefits during a sale, but I was mistaken. Zinc is vital for insulin synthesis and immunity. I regret not choosing a monopreparation earlier, as copper interferes with zinc absorption. I still take it now but plan to switch to a better form for my chronic fatigue syndrome.
9
Fatigue relief
1 people found this helpful
I discovered zinc deficiency after unexplained back pain and noticed that fatigue I attributed to age was actually due to this deficiency. After taking this zinc supplement, my chronic fatigue syndrome has gradually improved.
7.5
Effective for healing
4 people found this helpful
If you're dealing with chronic fatigue syndrome or slow-healing wounds, zinc is essential! This trace mineral has various health benefits, including immune support and skin healing. I take one capsule daily and feel well, with no side effects!
7
Zinc supplementation may benefit CFS
Lower serum zinc in Chronic Fatigue Syndrome (CFS): relationships to immune dysfunctions and relevance for the oxidative stress status in CFS.
We explored the relationship between serum zinc levels and chronic fatigue syndrome (CFS) in a study that compared patients with CFS to normal volunteers. By using an atomic absorption method, we measured serum zinc concentrations and found that those suffering from CFS had significantly lower levels of zinc compared to healthy individuals.
Interestingly, we observed a trend indicating that lower zinc levels correlated with greater CFS severity. Patients also reported a negative correlation between their zinc levels and their subjective experiences of infection. This suggests that zinc plays a role in the immune dysfunction commonly seen in CFS.
Furthermore, we noted that lower serum zinc was associated with higher levels of inflammatory markers and certain defects in the early activation of T cells. Since zinc acts as a potent antioxidant, our findings indicate that CFS is linked to increased oxidative stress in these patients. Given this, it may be beneficial for some CFS patients to consider zinc supplements as part of their treatment approach.
8
Synbiotics improve post-COVID fatigue
The effects of 3-month supplementation with synbiotic on patient-reported outcomes, exercise tolerance, and brain and muscle metabolism in adult patients with post-COVID-19 chronic fatigue syndrome (STOP-FATIGUE): a randomized Placebo-controlled clinical trial.
We investigated the impact of a 3-month supplementation with a special synbiotic mixture on adults suffering from post-COVID-19 chronic fatigue syndrome (ME/CFS). This study was thoughtfully designed as a placebo-controlled, double-blind trial involving 26 participants. The intention was to see how this synbiotic, which notably contains zinc among other components, would influence patients' overall experiences, exercise tolerance, and metabolism in tissues affected by fatigue.
The promising findings indicated that taking the synbiotic mixture for three months improved metabolism and helped alleviate some clinical features associated with post-COVID fatigue syndrome. However, it's important to note that because zinc was part of this mixture, the study does not allow us to draw clear conclusions about zinc alone and its effects on chronic fatigue syndrome.
While our research shows that synbiotics may offer a safe and beneficial approach to managing symptoms of ME/CFS following COVID-19, further investigations are needed to fully understand the role of each component, including zinc, before making any strong recommendations for its use in this context.
8
Zinc's limited role in fatigue relief
Effect of Melatonin Plus Zinc Supplementation on Fatigue Perception in Myalgic Encephalomyelitis/Chronic Fatigue Syndrome: A Randomized, Double-Blind, Placebo-Controlled Trial.
We conducted a study to explore how oral supplementation of melatonin combined with zinc affects fatigue in patients with Myalgic Encephalomyelitis/Chronic Fatigue Syndrome (ME/CFS). The trial lasted 16 weeks, involved 50 participants, and was designed as a randomized, double-blind, placebo-controlled study. Patients were divided to receive either melatonin with zinc or a placebo daily.
Throughout the study, we focused on measuring fatigue levels, sleep disturbances, anxiety, and overall quality of life. Our findings highlighted a significant reduction in physical fatigue for those taking the melatonin and zinc combination compared to the placebo group at the end of the treatment period. While the treatment led to an increase in urinary melatonin levels, we did not observe any significant changes in zinc concentrations.
Overall, our results suggest that adding melatonin with zinc could potentially improve the quality of life for those suffering from ME/CFS, primarily by alleviating fatigue symptoms. However, the combination treatment makes it challenging to isolate the specific impact of zinc alone on chronic fatigue syndrome.
References
Ranisavljev M, Stajer V, Todorovic N, Ostojic J, Cvejic JH, et al. The effects of 3-month supplementation with synbiotic on patient-reported outcomes, exercise tolerance, and brain and muscle metabolism in adult patients with post-COVID-19 chronic fatigue syndrome (STOP-FATIGUE): a randomized Placebo-controlled clinical trial. Eur J Nutr. 2024;64:28. doi:10.1007/s00394-024-03546-0
Noce A, Marrone G, Di Lauro M, Vita C, Montalto G, et al. Potential Anti-Inflammatory and Anti-Fatigue Effects of an Oral Food Supplement in Long COVID Patients. Pharmaceuticals (Basel). 2024;17. doi:10.3390/ph17040463
Lacasa M, Alegre-Martin J, Sentañes RS, Varela-Sende L, Jurek J, et al. Yeast Beta-Glucan Supplementation with Multivitamins Attenuates Cognitive Impairments in Individuals with Myalgic Encephalomyelitis/Chronic Fatigue Syndrome: A Randomized, Double-Blind, Placebo-Controlled Trial. Nutrients. 2023;15. doi:10.3390/nu15214504
Imai K, Yamano T, Nishi S, Nishi R, Nishi T, et al. Epipharyngeal Abrasive Therapy (EAT) Has Potential as a Novel Method for Long COVID Treatment. Viruses. 2022;14. doi:10.3390/v14050907
Castro-Marrero J, Zaragozá MC, López-Vílchez I, Galmés JL, Cordobilla B, et al. Effect of Melatonin Plus Zinc Supplementation on Fatigue Perception in Myalgic Encephalomyelitis/Chronic Fatigue Syndrome: A Randomized, Double-Blind, Placebo-Controlled Trial. Antioxidants (Basel). 2021;10. doi:10.3390/antiox10071010
Maes M, Leunis JC. Normalization of leaky gut in chronic fatigue syndrome (CFS) is accompanied by a clinical improvement: effects of age, duration of illness and the translocation of LPS from gram-negative bacteria. Neuro Endocrinol Lett. 2008;29:902.
Maes M, Mihaylova I, De Ruyter M. Lower serum zinc in Chronic Fatigue Syndrome (CFS): relationships to immune dysfunctions and relevance for the oxidative stress status in CFS. J Affect Disord. 2006;90:141.