Rheumatoid Arthritis Related Diseases & Conditions

Medical conditions are often related to other diseases and conditions. Our doctors have compiled a list of ailments related to the topic of Rheumatoid Arthritis. These conditions may be a cause or symptom of Rheumatoid Arthritis or be a condition for which you may be at increased risk.

  • Swollen Lymph Nodes Lymph nodes help the body's immune system fight infections. Causes of swollen lymph nodes (glands) may include infection (viral,...learn more »
    In This Article
    Swollen Lymph Nodes Article
    • Swollen lymph nodes facts
    • What are lymph nodes?
    • Where are the lymph nodes located in the body?
    • Picture of lymph nodes located in the body
    • What are the causes of swollen lymph nodes?
    • What are the symptoms of swollen lymph nodes?
    • How are swollen lymph nodes diagnosed?
    • What is the treatment for swollen lymph nodes?
    • When should I see the doctor for swollen lymph nodes?
    • What are the common lymph nodes that may become swollen?
    • What are the complications of swollen lymph nodes?
  • Lyme Disease Lyme disease is a bacterial illness, which is spread by ticks when they bite the skin. Initially the disease affects the skin...learn more »
    In This Article
    Lyme Disease Article
    • Lyme disease facts
    • What is Lyme disease? What causes Lyme disease?
    • What is the history of Lyme disease?
    • What are risk factors for developing Lyme disease?
    • What are symptoms and signs of Lyme disease?
    • How do health-care professionals diagnose Lyme disease?
    • What is the treatment for Lyme disease, and what is its prognosis?
    • Is it possible to prevent Lyme disease? Is there a vaccine?
  • Sacroiliac Joint Dysfunction (SI Joint Pain) Sacroiliac joint (SI) dysfunction is a general term to reflect pain in the SI joints. Causes of SI joint pain include...learn more »
    In This Article
    Sacroiliac Joint Dysfunction (SI Joint Pain) Article
    • What are the sacroiliac (SI) joints?
    • What is sacroiliac joint dysfunction?
    • What causes sacroiliac joint dysfunction?
    • What are sacroiliac joint dysfunction symptoms?
    • How is sacroiliac joint dysfunction diagnosed?
    • What is the treatment for sacroiliac joint dysfunction?
    • How can sacroiliac joint dysfunction be prevented?
  • Dry Mouth (Xerostomia) Dry mouth is a common side effect of many prescription and non-prescription drugs and certain medical conditions. Symptoms of dry...learn more »
    In This Article
    Dry Mouth (Xerostomia) Article
    • What is dry mouth?
    • How common is dry mouth?
    • What are the benefits of saliva?
    • What causes dry mouth?
    • What are the signs and symptoms of dry mouth?
    • How do health-care professionals diagnose dry mouth?
    • What is the treatment for dry mouth?
    • Is it possible to prevent dry mouth?
    • What is the prognosis of dry mouth?
  • Knee Pain Acute injuries, medical conditions, and chronic use conditions are causes of knee pain. Symptoms and signs that accompany knee...learn more »
    In This Article
    Knee Pain Article
    • Knee pain facts
    • What is knee pain?
    • What are knee pain symptoms and signs?
    • What causes knee pain?
    • What are risk factors for knee pain?
    • When should people with knee pain call a health-care professional?
    • What are some of the complications of knee pain?
    • How do physicians diagnose knee pain?
    • What is the treatment for knee pain?
    • Are there any home remedies for relief of knee pain?
    • What is the prognosis of knee pain?
  • Lupus Systemic lupus erythematosus is a condition characterized by chronic inflammation of body tissues caused by autoimmune disease....learn more »
    In This Article
    Lupus Article
    • Systemic lupus erythematosus facts
    • What is systemic lupus erythematosus? What are the types of lupus?
    • What causes systemic lupus erythematosus? Is lupus hereditary?
    • What is drug-induced lupus?
    • What are lupus symptoms and signs?
    • How is systemic lupus erythematosus diagnosed?
    • What is the treatment for systemic lupus?
    • How can a lupus patient help prevent disease activity (flares)?
    • How can systemic lupus erythematosus affect pregnancy or the newborn?
    • What is the prognosis of lupus? What does the future hold for people with systemic lupus?
    • Where can one get more information about systemic lupus erythematosus?
  • Sjogren's Syndrome Sjögren's syndrome is an autoimmune disease involving the abnormal production of extra antibodies that attack the glands and...learn more »
    In This Article
    Sjogren's Syndrome Article
    • Sjögren's syndrome facts
    • What is Sjögren's syndrome?
    • What causes Sjögren's syndrome?
    • What are risk factors for developing Sjögren's syndrome?
    • What are Sjögren's syndrome symptoms and signs?
    • How is Sjögren's syndrome diagnosed?
    • What is the treatment for Sjögren's syndrome? Will dietary changes improve Sjögren's syndrome symptoms and signs?
    • What are complications of Sjögren's syndrome?
    • Can Sjögren's syndrome be prevented?
    • What is the prognosis for patients with Sjögren's syndrome?
    • Conclusion
  • Peripheral Neuropathy Peripheral neuropathy is a problem with the functioning of the nerves outside of the spinal cord. Symptoms may include numbness,...learn more »
    In This Article
    Peripheral Neuropathy Article
    • Peripheral neuropathy facts
    • What is peripheral neuropathy?
    • What causes peripheral neuropathy?
    • What are the symptoms of peripheral neuropathy?
    • How is peripheral neuropathy diagnosed?
    • Is there any treatment for peripheral neuropathy?
    • Can peripheral neuropathy be prevented?
  • Knee Bursitis Bursitis of the knee results when any of the three fluid-filled sacs (bursae) become inflamed due to injury or strain. Symptoms...learn more »
    In This Article
    Knee Bursitis Article
    • Knee bursitis facts
    • What is bursitis?
    • What is knee bursitis?
    • What are causes of knee bursitis?
    • What are knee bursitis symptoms and signs?
    • How is knee bursitis diagnosed?
    • How is prepatellar bursitis of the knee treated? Are there home remedies for knee bursitis?
    • What about the other knee bursae?
    • What is the prognosis (outlook) of knee bursitis?
    • Can knee bursitis be prevented?
  • Baker Cyst A Baker cyst, also called a popliteal cyst, is swelling caused by knee joint fluid protruding to the back of the knee (popliteal...learn more »
    In This Article
    Baker Cyst Article
    • Baker cyst facts
    • What is a Baker cyst?
    • What causes a Baker cyst?
    • What are symptoms and signs of a Baker cyst?
    • How is a Baker cyst diagnosed?
    • How is a Baker cyst treated?
    • What is the prognosis for a Baker cyst?
    • Is it possible to prevent a Baker cyst?
  • Ankle Pain Ankle pain is commonly due to a sprain or tendinitis. The severity of ankle sprains ranges from mild (which can resolve within...learn more »
    In This Article
    Ankle Pain Article
    • Ankle pain and tendinitis facts
    • How is the ankle designed, and what is the ankle's function?
    • What injuries can cause ankle pain?
    • What diseases and conditions can cause ankle pain, and how are they treated?
  • Pleurisy (Pleuritis) Pleurisy, an inflammation of the lining around the lungs, is associated with sharp chest pain upon breathing in. Cough, chest...learn more »
    In This Article
    Pleurisy (Pleuritis) Article
    • Pleurisy facts
    • What is pleurisy?
    • What causes pleurisy?
    • How does the pleura work?
    • What are the symptoms of pleurisy?
    • How is pleurisy diagnosed?
    • How is pleurisy treated?
    • Can pleurisy be prevented?
  • Cushing's Syndrome Cushing's syndrome, sometimes referred to as hypercortisolism, is a hormonal disorder caused by prolonged exposure to high levels...learn more »
    In This Article
    Cushing's Syndrome Article
    • Cushing's syndrome facts*
    • What is Cushing's syndrome?
    • What are the symptoms of Cushing's syndrome?
    • What causes Cushing's syndrome?
    • How is Cushing's syndrome diagnosed?
    • How is Cushing's syndrome treated?
    • What research is being done on Cushing's syndrome?
    • For more information
  • Fatigue Fatigue can be described in various ways. Sometimes fatigue is described as feeling a lack of energy and motivation (both mental...learn more »
    In This Article
    Fatigue Article
    • Fatigue Facts
    • Fatigue introduction
    • What causes fatigue?
    • What are the signs and symptoms of fatigue?
    • How is the cause of fatigue diagnosed?
    • What is the treatment for fatigue?
    • Can fatigue be prevented?
  • Dry Eyes Dry eyes are caused by an imbalance in the tear-flow system of the eye, but also can be caused by the drying out of the tear...learn more »
    In This Article
    Dry Eyes Article
    • Dry eye syndrome facts
    • What is dry eye syndrome?
    • What causes dry eye syndrome?
    • What is the impact of dry eye syndrome?
    • What are dry eye syndrome symptoms and signs?
    • What are the complications of dry eye syndrome?
    • What are the risk factors for dry eye syndrome?
    • What is the treatment for dry eye syndrome?
    • Can self-care treatments and remedies help alleviate dry eyes?
    • What is the medical treatment for dry eye syndrome?
    • What medications are used to treat dry eye syndrome?
    • Can surgery treat dry eye syndrome?
    • What other therapies are used to treat dry eye syndrome?
  • Steroid Drug Withdrawal Corticosteroid drugs such as prednisone and prednisolone are commonly used to treat asthma, allergic reactions, RA, and IBD....learn more »
    In This Article
    Steroid Drug Withdrawal Article
    • Steroid withdrawal facts
    • Introduction
    • Withdrawal symptoms
    • Going off steroids
  • Bunions The common bunion, an enlargement of the inner portion of the joint at the base of the big toe, primarily affects women. The...learn more »
    In This Article
    Bunions Article
    • Bunions facts
    • What are bunions?
    • What are the causes of bunions?
    • Who develops bunions?
    • What are symptoms and signs of a bunion?
    • How is a bunion diagnosed?
    • How are bunions treated? Are there home remedies to treat bunions?
    • Can bunions be prevented?
    • What is the prognosis of a bunion?
  • Graves' Disease Graves' disease is an autoimmune disease that affects the thyroid. Some of the symptoms of Graves' disease include hand tremors,...learn more »
    In This Article
    Graves' Disease Article
    • Graves' disease facts*
    • What is Graves' disease?
    • What are the symptoms of Graves' disease?
    • Who gets Graves' disease?
    • What causes Graves' disease?
    • How do I find out if I have Graves' disease?
    • How is Graves' disease treated?
    • What could happen if Graves' disease is not treated?
    • Does pregnancy affect the thyroid?
    • Do I need a thyroid test if I become pregnant?
    • I have Graves' disease and want to have a baby. What should I do before I try to become pregnant?
    • How is Graves' disease managed during pregnancy?
    • Can I breastfeed if I am taking antithyroid medicine for Graves' disease?
    • For more information on Graves' disease
  • Fibromyalgia Fibromyalgia is a chronic pain condition characterized by symptoms such as fatigue, sleep disturbances, and tender points. Stress...learn more »
    In This Article
    Fibromyalgia Article
    • Fibromyalgia facts
    • What is fibromyalgia?
    • What causes fibromyalgia?
    • Is fibromyalgia hereditary?
    • What are risk factors for fibromyalgia?
    • What are fibromyalgia symptoms and signs?
    • How do physicians diagnose fibromyalgia?
    • What is the treatment for fibromyalgia?
    • Are there any home remedies for fibromyalgia?
    • Does diet or exercise affect fibromyalgia?
    • What is the prognosis of fibromyalgia?
    • Is it possible to prevent fibromyalgia?
    • Are there support groups for fibromyalgia?
    • What is the latest research on fibromyalgia?
  • Vasculitis Vasculitis is a general term for a group of uncommon diseases which feature inflammation of the blood vessels. Each form of...learn more »
    In This Article
    Vasculitis Article
    • Vasculitis facts
    • What is vasculitis?
    • What causes vasculitis, and what are examples of diseases with vasculitis?
    • What are the symptoms of vasculitis?
    • How is vasculitis diagnosed?
    • How is vasculitis treated?
  • Connective Tissue Disease Connective tissue disease is when the body's connective tissues come under attack, possibly becoming injured by inflammation....learn more »
    In This Article
    Connective Tissue Disease Article
    • What is a connective tissue disease?
    • What causes connective tissue disease?
    • What are symptoms and signs of a connective tissue disease?
    • How are connective tissue diseases diagnosed?
    • What are genetic risk factors for developing connective tissue disease?
    • What autoimmune diseases are associated with connective tissue disease?
  • Osteopenia Osteopenia is a bone condition characterized by bone loss that is not as severe as in osteoporosis. Bone fracture is the typical...learn more »
    In This Article
    Osteopenia Article
    • Osteopenia facts
    • What is osteopenia?
    • What causes osteopenia?
    • What are osteopenia symptoms and signs?
    • Why is osteopenia important?
    • When should I see my doctor for osteopenia?
    • How is osteopenia diagnosed?
    • Who should be tested for osteopenia?
    • What is the treatment for osteopenia?
    • What follow-up is needed after treatment of osteopenia has been initiated?
    • Can osteopenia be prevented?
    • What is the prognosis of osteopenia?
  • Chronic Pain Chronic pain is pain (an unpleasant sense of discomfort) that persists or progresses over a long period of time. In contrast to...learn more »
    In This Article
    Chronic Pain Article
    • Chronic pain facts*
    • Introduction to chronic pain
    • The A to Z of pain
    • How is pain diagnosed?
    • How is pain treated?
    • Pain management
    • What is the role of age and gender in pain?
    • A pain primer: what do we know about pain?
    • What is the future of pain research?
    • Appendix
    • Spine basics: the vertebrae, discs and spinal cord
    • The nervous system
    • Phantom pain: how does the brain feel?
    • Chili peppers, capsaicin and pain
    • Marijuana for pain treatment
    • Nerve blocks for pain treatment
    • Where can I get more information about pain?
  • Raynaud's Phenomenon Raynaud's phenomenon is characterized by a pale-blue-red sequence of color changes of the digits, most commonly after exposure to...learn more »
    In This Article
    Raynaud's Phenomenon Article
    • Raynaud's phenomenon facts
    • What is Raynaud's phenomenon?
    • What causes Raynaud's phenomenon?
    • What conditions have been associated with Raynaud's phenomenon?
    • What are Raynaud's phenomenon symptoms and signs?
    • How is Raynaud's phenomenon diagnosed?
    • What is the treatment for Raynaud's phenomenon?
    • What is the prognosis (outlook) for Raynaud's phenomenon?
    • Can Raynaud's phenomenon by prevented?
  • Amyloidosis Amyloidosis is a group of diseases resulting from abnormal deposition of certain proteins (amyloids) in various bodily areas. The...learn more »
    In This Article
    Amyloidosis Article
    • Amyloidosis facts
    • What is amyloidosis?
    • What causes amyloidosis?
    • What are risk factors for amyloidosis?
    • What are amyloidosis symptoms and signs?
    • How is amyloidosis diagnosed?
    • What is the treatment for amyloidosis?
    • What are complications of amyloidosis?
    • What is the prognosis of amyloidosis?
    • Can amyloidosis be prevented?
    • Where can people find more information on amyloidosis?
  • Costochondritis and Tietze's Syndrome Costochondritis is inflammation of the cartilage where the ribs attach to the sternum. Tietze syndrome affects the same region of...learn more »
    In This Article
    Costochondritis and Tietze's Syndrome Article
    • What is costochondritis?
    • What causes costochondritis?
    • What are symptoms of costochondritis, and what is Tietze's syndrome?
    • How are costochondritis and Tietze's syndrome diagnosed?
    • What is the treatment for costochondritis and Tietze's syndrome?
    • What is the prognosis for costochondritis and Tietze's syndrome?
    • Can costochondritis and Tietze's syndrome be prevented?
  • Corneal Ulcer A corneal ulcer is an open sore on the cornea. Infection is a common cause of corneal ulcer. Symptoms and signs of corneal ulcer...learn more »
    In This Article
    Corneal Ulcer Article
    • Corneal ulcer facts
    • What is a corneal ulcer?
    • What does a corneal ulcer look like?
    • What are the causes of a corneal ulcer?
    • What are corneal ulcer symptoms?
    • What are corneal ulcer signs?
    • How is a corneal ulcer diagnosed?
    • What is the treatment for a corneal ulcer?
    • What is the healing time for a corneal ulcer?
    • Can corneal ulcers be prevented?
  • Food Allergy The most common food allergies are to eggs, nuts, milk, peanuts, fish, shellfish, strawberries and tomatoes. Symptoms and signs...learn more »
    In This Article
    Food Allergy Article
    • Food allergy facts
    • Introduction to food allergies
    • How do allergic reactions to food occur?
    • What are the symptoms and signs of food allergy?
    • Do infants and children have problems with food allergy?
    • What are the most common food allergies?
    • What is cross-reactivity?
    • What is oral allergy syndrome?
    • What is exercise-induced food allergy?
    • What conditions have mistakenly been attributed to food allergy?
    • What conditions mimic food allergy?
    • How is food allergy diagnosed?
    • What is the treatment for a food allergy?
    • Are allergy shots effective in preventing or decreasing food allergy?
  • Brain Lesions (Lesions on the Brain) Brain lesions (lesions on the brain) are caused by trauma, inflammation, autoimmune diseases, cancers, other diseases, stroke,...learn more »
    In This Article
    Brain Lesions (Lesions on the Brain) Article
    • Brain lesions facts
    • Brain anatomy
    • What are brain lesions?
    • What causes brain lesions?
    • What are the types of brain lesions?
    • What are the symptoms of brain lesions?
    • How are brain lesions diagnosed?
    • What is the treatment for brain lesions?
    • Can brain lesions be prevented?
    • What is the prognosis for brain lesions?
  • Polymyositis Polymyositis is a disease of the muscle featuring inflammation of the muscle fibers. It results in weakness of the muscles which...learn more »
    In This Article
    Polymyositis Article
    • Polymyositis facts
    • What is polymyositis?
    • What causes polymyositis?
    • What are symptoms of polymyositis?
    • How does the doctor diagnose polymyositis?
    • How is polymyositis treated?
    • What is the prognosis for polymyositis?
    • What are risk factors for worse outcomes with polymyositis?
    • Can polymyositis be prevented?
    • Where can people find more information on polymyositis and dermatomyositis?
  • Head and Neck Cancer Head and neck cancer is cancer of the oral cavity, salivary glands, paranasal sinuses and nasal cavity, pharynx, larynx, or lymph...learn more »
    In This Article
    Head and Neck Cancer Article
    • Head and neck cancer facts*
    • What is cancer?
    • What kinds of cancers are considered cancers of the head and neck?
    • How common are head and neck cancers?
    • What causes head and neck cancers?
    • What are common symptoms of head and neck cancers?
    • How are head and neck cancers diagnosed?
    • What health professionals treat patients with head and neck cancers?
    • How are head and neck cancers treated?
    • Are clinical trials (research studies) available for patients with head and neck cancers?
    • What rehabilitation or support options are available for patients with head and neck cancers?
    • Is follow-up treatment necessary? What does it involve?
    • What can people who have had head and neck cancer do to reduce the risk of developing a second primary (new) cancer?
  • Uveitis Uveitis is inflammation of the eye. Symptoms include blurred vision, eye pain, eye redness, photophobia, and floaters. Treatment...learn more »
    In This Article
    Uveitis Article
    • What is uveitis?
    • What causes uveitis?
    • What are symptoms of uveitis?
    • What are the signs of uveitis?
    • What are the different types of uveitis?
    • What other medical conditions are associated with uveitis?
    • How is uveitis diagnosed?
    • What is the treatment for uveitis?
    • What is the prognosis for uveitis?
    • What are the complications of uveitis?
    • Can uveitis be prevented?
  • Scleritis Scleritis is inflammation of the white part of the eye. It may be caused by a serious underlying condition, such as an autoimmune...learn more »
    In This Article
    Scleritis Article
    • Scleritis facts
    • What is scleritis?
    • What is the sclera?
    • What causes scleritis?
    • What are risk factors for scleritis?
    • What are symptoms of scleritis?
    • What are signs of scleritis?
    • How is scleritis diagnosed?
    • What is the treatment for scleritis?
    • What are the complications of scleritis?
    • What is the prognosis for scleritis?
    • Can scleritis be prevented?
    • What research is being done on scleritis?
  • Pericarditis Pericarditis is the inflammation of the pericardial sac that surrounds the heart. The causes of pericarditis include injury from...learn more »
    In This Article
    Pericarditis Article
    • Pericarditis facts
    • What is pericarditis?
    • What causes pericarditis?
    • What are the symptoms of pericarditis?
    • How is pericarditis diagnosed?
    • What is the treatment for pericarditis?
    • What are the complications of pericarditis?
    • Related pericarditis article:
      Pericarditis - on eMedicineHealth
  • Relapsing Polychondritis Relapsing polychondritis is an uncommon, chronic disorder of the cartilage that is characterized by recurrent episodes of...learn more »
    In This Article
    Relapsing Polychondritis Article
    • Relapsing polychondritis facts
    • What is relapsing polychondritis?
    • What causes relapsing polychondritis?
    • What are symptoms and signs of relapsing polychondritis?
    • How is relapsing polychondritis diagnosed?
    • Can relapsing polychondritis be associated with other diseases?
    • What medications are used to treat relapsing polychondritis?
    • What is the long-term outlook (prognosis) for patients with relapsing polychondritis?
  • Ganglion A ganglion is a fluid-filled cyst that forms from the joint or tendon lining. Ganglia are most frequently found in the ankles and...learn more »
    In This Article
    Ganglion Article
    • What is a ganglion?
    • Where do ganglia form, and what symptoms do they cause?
    • How are ganglia treated?
  • Still's Disease Still's disease (Systemic-Onset Juvenile Rheumatoid Arthritis) is a disorder characterized by inflammation with high fever...learn more »
    In This Article
    Still's Disease Article
    • Still's disease facts
    • What is Still's disease?
    • What causes Still's disease?
    • What are risk factors for Still's disease?
    • How does Still's disease relate to juvenile idiopathic arthritis?
    • What are symptoms and signs of Still's disease?
    • How is Still's disease diagnosed?
    • What is the frequency of Still's disease and its features?
    • What is the treatment for Still's disease?
    • Is it possible to prevent Still's disease?
    • What Still's disease research is being done?
    • What is the outlook (prognosis) with Still's disease?
  • Pain Management and Rheumatoid Arthritis Second Source article from WebMD...learn more »
  • Rheumatoid Arthritis Second Source article from Government...learn more »
  • Juvenile Idiopathic Arthritis (Juvenile Rheumatoid Arthritis) Juvenile idiopathic arthritis (juvenile rheumatoid arthritis or JRA) annually affects one child in every thousand. There are six...learn more »
    In This Article
    Juvenile Idiopathic Arthritis (Juvenile Rheumatoid Arthritis) Article
    • Juvenile idiopathic arthritis (JIA) facts
    • What is juvenile idiopathic arthritis?
    • What are causes and risk factors of juvenile idiopathic arthritis?
    • What are juvenile idiopathic arthritis symptoms and signs, and how are the different types of juvenile idiopathic arthritis diagnosed?
    • What is the treatment for juvenile idiopathic arthritis?
    • What are complications of juvenile idiopathic arthritis?
    • What is the prognosis of juvenile idiopathic arthritis?
  • Biorhythms Biologic rhythms, or biorhythms, are how our bodies respond to the regular phases of the sun, moon, and seasons. A medical...learn more »
    In This Article
    Biorhythms Article
    • What are biologic rhythms?
    • How does the "body clock" affects symptoms of illness?
    • What are examples of specific diseases affected by biorhythms?
    • Angina
    • Heart attack
    • High blood pressure (hypertension)
    • Hay fever (allergic rhinitis)
    • Asthma
    • Can the "body clock"  affect diagnostic testing?
    • Can drug therapy be matched to the "body clock?"
  • Felty's Syndrome Felty's syndrome is a complication of long-term rheumatoid arthritis. Felty's syndrome is defined by the presence of three...learn more »
    In This Article
    Felty's Syndrome Article
    • Felty's syndrome facts
    • What is Felty's syndrome?
    • What are the symptoms of Felty's syndrome?
    • What causes Felty's syndrome?
    • How is Felty's syndrome diagnosed?
    • How is Felty's syndrome treated?
  • Problem Sleepiness When sleepiness interferes with daily routines and activities, or reduces the ability to function, it is called "problem...learn more »
    In This Article
    Problem Sleepiness Article
    • Problem sleepiness facts*
    • What is problem sleepiness?
    • What are the symptoms of problem sleepiness?
    • What causes problem sleepiness?
    • Sleep-wake cycle
    • Inadequate sleep
    • Sleep disorders
    • Medical conditions/drugs
    • Problem sleepiness and adolescents
    • Shift work and problem sleepiness
    • What treatments and remedies can help for problem sleepiness?
  • Quackery of Arthritis Arthritis patients are sometimes vulnerable to quackery (the business of promoting unproven remedies). These "quick fix"...learn more »