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An arrhythmia is a problem with the rate or rhythm of your heartbeat. It means that your heart beats too quickly, too slowly, or with an irregular pattern. When the heart beats faster than normal, it is called tachycardia. When the heart beats too slowly, it is called bradycardia. The most common type of arrhythmia ...	What is (are) Arrhythmia ?	An arrhythmia is a problem with the rate or rhythm of your heartbeat. It means that your heart beats too quickly, too slowly, or with an irregular pattern. When the heart beats faster than normal, it is called tachycardia. When the heart beats too slowly, it is called bradycardia. The most common type of arrhythmia is ...
Colorectal cancer is cancer that develops in the tissues of the colon or rectum. Your colon and rectum are part of your digestive system: Cancer that begins in the colon is called colon cancer, and cancer that begins in the rectum is called rectal cancer. Cancer that affects either of these parts may also be called ...	What is (are) Colorectal Cancer ?	The colon and rectum are part of the large intestine. Colorectal cancer occurs when tumors form in the lining of the large intestine. It is common in both men and women. The risk of developing colorectal cancer rises after age 50. You're also more likely to get it if you have colorectal polyps, a family history of colo...
Do you know if your current weight is healthy? "Underweight", "normal", "overweight", and "obese" are all labels for ranges of weight. Obese and overweight mean that your weight is greater than it should be for your health. Underweight means that it is lower than it should be for your health. Your healthy body wei...	Do you have information about Body Weight	Summary : Do you know if your current weight is healthy? "Underweight", "normal", "overweight", and "obese" are all labels for ranges of weight. Obese and overweight mean that your weight is greater than it should be for your health. Underweight means that it is lower than it should be for your health. Your healthy bod...
Uterine fibroids are the most common benign tumors in women of childbearing age. Fibroids are made of muscle cells and other tissues that grow in and around the wall of the uterus, or womb. The cause of fibroids is unknown. Risk factors include being African American or being overweight. Many women with fibroids hav...	What is (are) Uterine Fibroids ?	Uterine fibroids are the most common benign tumors in women of childbearing age. Fibroids are made of muscle cells and other tissues that grow in and around the wall of the uterus, or womb. The cause of fibroids is unknown. Risk factors include being African American or being overweight. Many women with fibroids hav...
Not all medicines are safe to take when you are pregnant. Some medicines can harm your baby. That includes over-the-counter or prescription drugs, herbs, and supplements. Always speak with your health care provider before you start or stop any medicine. Not using medicine that you need may be more harmful to you and...	Do you have information about Pregnancy and Medicines	Summary : Not all medicines are safe to take when you are pregnant. Some medicines can harm your baby. That includes over-the-counter or prescription drugs, herbs, and supplements. Always speak with your health care provider before you start or stop any medicine. Not using medicine that you need may be more harmful ...
Cirrhosis is scarring of the liver. Scar tissue forms because of injury or long-term disease. Scar tissue cannot do what healthy liver tissue does - make protein, help fight infections, clean the blood, help digest food and store energy. Cirrhosis can lead to : A small number of people with cirrhosis get liver ca...	What is (are) Cirrhosis ?	Cirrhosis is scarring of the liver. Scar tissue forms because of injury or long-term disease. Scar tissue cannot do what healthy liver tissue does - make protein, help fight infections, clean the blood, help digest food and store energy. Cirrhosis can lead to - Easy bruising or bleeding, or nosebleeds - Swell...
Seasonal affective disorder (SAD) is a type of depression that comes and goes with the seasons. It usually starts in the late fall and early winter and goes away during the spring and summer. Some people do have episodes of depression that start in the spring or summer, but that is a lot less common. Symptoms of SAD ma...	What is (are) Seasonal Affective Disorder ?	Some people experience a serious mood change during the winter months, when there is less natural sunlight. This condition is called seasonal affective disorder, or SAD. SAD is a type of depression. It usually lifts during spring and summer. Not everyone with SAD has the same symptoms. They include - Sad, anx...
A hurricane is a severe type of tropical storm. Hurricanes produce high winds, heavy rains and thunderstorms. Hurricanes can cause tremendous damage. Winds can exceed 155 miles per hour. Hurricanes and tropical storms can also spawn tornadoes and lead to flooding. The high winds and heavy rains can destroy buildings,...	Do you have information about Hurricanes	Summary : A hurricane is a severe type of tropical storm. Hurricanes produce high winds, heavy rains and thunderstorms. Hurricanes can cause tremendous damage. Winds can exceed 155 miles per hour. Hurricanes and tropical storms can also spawn tornadoes and lead to flooding. The high winds and heavy rains can destroy bu...
The pancreas is a gland behind your stomach and in front of your spine. It produces the juices that help break down food and the hormones that help control blood sugar levels. A pancreas transplant is surgery to place a healthy pancreas from a donor into a person with a diseased pancreas. It is mostly done for people ...	Do you have information about Pancreas Transplantation	Summary : The pancreas is a gland behind your stomach and in front of your spine. It produces the juices that help break down food and the hormones that help control blood sugar levels. A pancreas transplant is surgery to place a healthy pancreas from a donor into a person with a diseased pancreas. It is mostly done fo...
If you have diabetes, your blood glucose, or blood sugar, levels are too high. Glucose comes from the foods you eat. A hormone called insulin helps the glucose get into your cells to give them energy. With type 1 diabetes, your body does not make insulin. With type 2 diabetes, your body does not make or use insulin ...	What is (are) Diabetes Complications ?	If you have diabetes, your blood glucose, or blood sugar, levels are too high. Over time, this can cause problems with other body functions, such as your kidneys, nerves, feet, and eyes. Having diabetes can also put you at a higher risk for heart disease and bone and joint disorders. Other long-term complications of di...
Dentures are false teeth made to replace teeth you have lost. They can be complete or partial. Complete dentures cover your entire upper or lower jaw. Partials replace one or a few teeth. Dentures may feel strange at first. Speaking and eating may feel different. Be careful when wearing dentures because they may make i...	What is (are) Dentures ?	Dentures are false teeth made to replace teeth you have lost. Dentures can be complete or partial. Complete dentures cover your entire upper or lower jaw. Partials replace one or a few teeth. Advances in dentistry have made many improvements in dentures. They are more natural looking and comfortable than they used t...
Pain is a signal in your nervous system that something may be wrong. It is an unpleasant feeling, such as a prick, tingle, sting, burn, or ache. Pain may be sharp or dull. It may come and go, or it may be constant. You may feel pain in one area of your body, such as your back, abdomen, chest, pelvis, or you may feel...	What is (are) Pain ?	Pain is a feeling triggered in the nervous system. Pain may be sharp or dull. It may come and go, or it may be constant. You may feel pain in one area of your body, such as your back, abdomen or chest or you may feel pain all over, such as when your muscles ache from the flu. Pain can be helpful in diagnosing a prob...
Diabetes insipidus (DI) causes frequent urination. You become extremely thirsty, so you drink. Then you urinate. This cycle can keep you from sleeping or even make you wet the bed. Your body produces lots of urine that is almost all water. DI is different from diabetes mellitus (DM), which involves insulin problems ...	What is (are) Diabetes Insipidus ?	Diabetes insipidus (DI) causes frequent urination. You become extremely thirsty, so you drink. Then you urinate. This cycle can keep you from sleeping or even make you wet the bed. Your body produces lots of urine that is almost all water. DI is different from diabetes mellitus (DM), which involves insulin problems ...
Edema means swelling caused by fluid in your body's tissues. It usually occurs in the feet, ankles and legs, but it can involve your entire body. Causes of edema include: To keep swelling down, your health care provider may recommend keeping your legs raised when sitting, wearing support stockings, limiting how much...	What is (are) Edema ?	Edema means swelling caused by fluid in your body's tissues. It usually occurs in the feet, ankles and legs, but it can involve your entire body. Causes of edema include - Eating too much salt - Sunburn - Heart failure - Kidney disease - Liver problems from cirrhosis - Pregnancy - Problems wi...
Most people feel sad or irritable from time to time. They may say they're in a bad mood. A mood disorder is different. It affects a person's everyday emotional state. Nearly one in ten people aged 18 and older have mood disorders. These include depression and bipolar disorder (also called manic depression). Mood dis...	What is (are) Mood Disorders ?	Most people feel sad or irritable from time to time. They may say they're in a bad mood. A mood disorder is different. It affects a person's everyday emotional state. Nearly one in ten people aged 18 and older have mood disorders. These include depression and bipolar disorder (also called manic depression). Mood dis...
If you're a parent, you get plenty of suggestions on how to raise your child. From experts to other parents, people are always ready to offer advice. Parenting tips, parents' survival guides, dos, don'ts, shoulds and shouldn'ts - new ones come out daily. The truth is there is more than one "right" way to be a good p...	What is (are) Parenting ?	If you're a parent, you get plenty of suggestions on how to raise your child. From experts to other parents, people are always ready to offer advice. Parenting tips, parents' survival guides, dos, don'ts, shoulds and shouldn'ts - new ones come out daily. The truth is there is more than one "right" way to be a good p...
The pericardium is a membrane, or sac, that surrounds your heart. It holds the heart in place and helps it work properly. Problems with the pericardium include: Symptoms of pericardial problems include chest pain, rapid heartbeat, and difficulty breathing. Fever is a common symptom of acute pericarditis. Your docto...	What is (are) Pericardial Disorders ?	The pericardium is a membrane, or sac, that surrounds your heart. It holds the heart in place and helps it work properly. Problems with the pericardium include - Pericarditis - an inflammation of the sac. It can be from a virus or other infection, a heart attack, heart surgery, other medical conditions, injuries,...
A stroke is a medical emergency. There are two types - ischemic and hemorrhagic. Hemorrhagic stroke is the less common type. It happens when a blood vessel breaks and bleeds into the brain. Within minutes, brain cells begin to die. Causes include a bleeding aneurysm, an arteriovenous malformation (AVM), or an artery wa...	What is (are) Hemorrhagic Stroke ?	A stroke is a medical emergency. There are two types - ischemic and hemorrhagic. Hemorrhagic stroke is the less common type. It happens when a blood vessel breaks and bleeds into the brain. Within minutes, brain cells begin to die. Causes include a bleeding aneurysm, an arteriovenous malformation (AVM), or an artery wa...
Alzheimer's disease (AD) is the most common form of dementia among older people. Dementia is a brain disorder that seriously affects a person's ability to carry out daily activities. AD begins slowly. It first involves the parts of the brain that control thought, memory and language. People with AD may have trouble...	What is (are) Alzheimer's Disease ?	Alzheimer's disease (AD) is the most common form of dementia among older people. Dementia is a brain disorder that seriously affects a person's ability to carry out daily activities. AD begins slowly. It first involves the parts of the brain that control thought, memory and language. People with AD may have trouble...
Genetic counseling provides information and support to people who have, or may be at risk for, genetic disorders. A genetic counselor meets with you to discuss genetic risks. The counseling may be for yourself or a family member. Or you may get it when you are planning or expecting a baby. You may follow up with ge...	Do you have information about Genetic Counseling	Summary : Genetic counseling provides information and support to people who have, or may be at risk for, genetic disorders. A genetic counselor meets with you to discuss genetic risks. The counseling may be for yourself or a family member. Or you may get it when you are planning or expecting a baby. You may follow up w...
Pelvic pain occurs mostly in the lower abdomen area. The pain might be steady, or it might come and go. It can be a sharp and stabbing pain in a specific spot, or a dull pain that is spread out. If the pain is severe, it might get in the way of your daily activities. If you're a woman, you might feel pain during you...	What is (are) Pelvic Pain ?	Pelvic pain occurs mostly in the lower abdomen area. The pain might be steady, or it might come and go. If the pain is severe, it might get in the way of your daily activities. If you're a woman, you might feel a dull pain during your period. It could also happen during sex. Pelvic pain can be a sign that there is a...
Staphylococcus (staph) is a group of bacteria. There are more than 30 types. A type called Staphylococcus aureus causes most infections. Staph bacteria can cause many different types of infections, including: Some people carry staph bacteria on their skin or in their noses, but they do not get an infection. But if t...	What is (are) Staphylococcal Infections ?	Staph is short for Staphylococcus, a type of bacteria. There are over 30 types, but Staphylococcus aureus causes most staph infections (pronounced "staff infections"), including - Skin infections - Pneumonia - Food poisoning - Toxic shock syndrome - Blood poisoning (bacteremia) Skin infections a...
Pheochromocytoma is a rare tumor that usually starts in the cells of one of your adrenal glands. Although they are usually benign, pheochromocytomas often cause the adrenal gland to make too many hormones. This can lead to high blood pressure and cause symptoms such as : Sometimes pheochromocytoma is part of anothe...	What is (are) Pheochromocytoma ?	Pheochromocytoma is a rare tumor that usually starts in the cells of one of your adrenal glands. Although they are usually benign, pheochromocytomas often cause the adrenal gland to make too many hormones. This can lead to high blood pressure and cause symptoms such as - Headaches - Sweating - Pounding of ...
A cataract is a clouding of the lens in your eye. It affects your vision. Cataracts are very common in older people. By age 80, more than half of all Americans either have a cataract or have had cataract surgery. A cataract can occur in either or both eyes. It cannot spread from one eye to the other. Common sympto...	What is (are) Cataract ?	A cataract is a clouding of the lens in your eye. It affects your vision. Cataracts are very common in older people. By age 80, more than half of all Americans either have a cataract or have had cataract surgery. A cataract can occur in either or both eyes. It cannot spread from one eye to the other. Common symptoms...
Cytomegalovirus (CMV) is a virus found around the world. It is related to the viruses that cause chickenpox and infectious mononucleosis (mono). Between 50% and 80% of adults in the United States have had a CMV infection by age 40. Once CMV is in a person's body, it stays there for life. CMV is spread through clos...	What is (are) Cytomegalovirus Infections ?	Cytomegalovirus (CMV) is a virus found around the world. It is related to the viruses that cause chickenpox and infectious mononucleosis (mono). Between 50 percent and 80 percent of adults in the United States have had a CMV infection by age 40. Once CMV is in a person's body, it stays there for life. CMV is spread...
Heroin is a white or brown powder or a black, sticky goo. It's an opioid drug made from morphine, a natural substance in the seedpod of the Asian poppy plant. It can be mixed with water and injected with a needle. Heroin can also be smoked or snorted up the nose. All of these ways of taking heroin send it to the br...	Do you have information about Heroin	Summary : Heroin is a white or brown powder or a black, sticky goo. It's made from morphine, a natural substance in the seedpod of the Asian poppy plant. It can be mixed with water and injected with a needle. Heroin can also be smoked or snorted up the nose. All of these ways of taking heroin send it to the brain very ...
E. coli is the name of a type of bacteria that lives in your intestines. Most types of E. coli are harmless. However, some types can make you sick and cause diarrhea. One type causes travelers' diarrhea. The worst type of E. coli causes bloody diarrhea, and can sometimes cause kidney failure and even death. These pr...	What is (are) E. Coli Infections ?	E. coli is the name of a type of bacteria that lives in your intestines. Most types of E. coli are harmless. However, some types can make you sick and cause diarrhea. One type causes travelers' diarrhea. The worst type of E. coli causes bloody diarrhea, and can sometimes cause kidney failure and even death. These probl...
Your colon, also known as the large intestine, is part of your digestive system. It's a long, hollow tube at the end of your digestive tract where your body makes and stores stool. Many disorders affect the colon's ability to work properly. Some of these include: Treatment for colonic diseases varies greatly dependi...	What is (are) Colonic Diseases ?	Your colon, also known as the large intestine, is part of your digestive system. It's a long, hollow tube at the end of your digestive tract where your body makes and stores stool. Many disorders affect the colon's ability to work properly. Some of these include - Colorectal cancer - Colonic polyps - extra t...
Seizures are symptoms of a brain problem. They happen because of sudden, abnormal electrical activity in the brain. When people think of seizures, they often think of convulsions in which a person's body shakes rapidly and uncontrollably. Not all seizures cause convulsions. There are many types of seizures and so...	What is (are) Seizures ?	Seizures are symptoms of a brain problem. They happen because of sudden, abnormal electrical activity in the brain. When people think of seizures, they often think of convulsions in which a person's body shakes rapidly and uncontrollably. Not all seizures cause convulsions. There are many types of seizures and some hav...
Diabetes is a disease in which your blood glucose, or blood sugar, levels are too high. Glucose comes from foods you eat. The cells of your body need glucose for energy. A hormone called insulin helps the glucose get into your cells. With type 1 diabetes, your body doesn't make insulin. With type 2 diabetes, your bo...	What is (are) Diabetic Eye Problems ?	If you have diabetes, your blood glucose, or blood sugar, levels are too high. Over time, this can damage your eyes. The most common problem is diabetic retinopathy. It is a leading cause of blindness in American adults. Your retina is the light-sensitive tissue at the back of your eye. You need a healthy retina to ...
Sleep is a complex biological process. While you are sleeping, you are unconscious, but your brain and body functions are still active. They are doing a number of important jobs that help you stay healthy and function at your best. So when you don't get enough quality sleep, it does more than just make you feel tire...	What is (are) Sleep Disorders ?	Is it hard for you to fall asleep or stay asleep through the night? Do you wake up feeling tired or feel very sleepy during the day, even if you have had enough sleep? You might have a sleep disorder. The most common kinds are - Insomnia - a hard time falling or staying asleep - Sleep apnea - breathing interru...
Cleft lip and cleft palate are birth defects that occur when a baby's lip or mouth do not form properly. They happen early during pregnancy. A baby can have a cleft lip, a cleft palate, or both. A cleft lip happens if the tissue that makes up the lip does not join completely before birth. This causes an opening in ...	What is (are) Cleft Lip and Palate ?	Cleft lip and cleft palate are birth defects that occur when a baby's lip or mouth do not form properly. They happen early during pregnancy. A baby can have a cleft lip, a cleft palate, or both. A cleft lip happens if the tissue that makes up the lip does not join completely before birth. This causes an opening in t...
An herb is a plant or plant part used for its scent, flavor, or therapeutic properties. Herbal medicines are one type of dietary supplement. They are sold as tablets, capsules, powders, teas, extracts, and fresh or dried plants. People use herbal medicines to try to maintain or improve their health. Many people beli...	Do you have information about Herbal Medicine	Summary : An herb is a plant or plant part used for its scent, flavor, or therapeutic properties. Herbal medicines are one type of dietary supplement. They are sold as tablets, capsules, powders, teas, extracts, and fresh or dried plants. People use herbal medicines to try to maintain or improve their health. Many p...
We all need clean water. People need it to grow crops and to operate factories, and for drinking and recreation. Fish and wildlife depend on it to survive. Many different pollutants can harm our rivers, streams, lakes, and oceans. The three most common are soil, nutrients, and bacteria. Rain washes soil into stre...	Do you have information about Water Pollution	Summary : We all need clean water. People need it to grow crops and to operate factories, and for drinking and recreation. Fish and wildlife depend on it to survive. Many different pollutants can harm our rivers, streams, lakes, and oceans. The three most common are soil, nutrients, and bacteria. Rain washes soil i...
If you have Tourette syndrome, you make unusual movements or sounds, called tics. You have little or no control over them. Common tics are throat-clearing and blinking. You may repeat words, spin, or, rarely, blurt out swear words. Tourette syndrome is a disorder of the nervous system. It often occurs with other pr...	What is (are) Tourette Syndrome ?	If you have Tourette syndrome, you make unusual movements or sounds, called tics. You have little or no control over them. Common tics are throat-clearing and blinking. You may repeat words, spin, or, rarely, blurt out swear words. Tourette syndrome is a disorder of the nervous system. It often occurs with other pr...
Your adrenal glands are just above your kidneys. The outside layer of these glands makes hormones that help your body respond to stress and regulate your blood pressure and water and salt balance. Addison disease happens if the adrenal glands don't make enough of these hormones. A problem with your immune system us...	What is (are) Addison Disease ?	Your adrenal glands are just above your kidneys. The outside layer of these glands makes hormones that help your body respond to stress and regulate your blood pressure and water and salt balance. Addison disease happens if the adrenal glands don't make enough of these hormones. A problem with your immune system usu...
When you're dizzy, you may feel lightheaded, woozy, or disoriented. If you feel like you or the room are spinning, you have vertigo. These feelings may make you lose your balance. Dizziness can have many different causes. A sudden drop in blood pressure or being dehydrated can make you dizzy. Many people feel lighth...	What is (are) Dizziness and Vertigo ?	When you're dizzy, you may feel lightheaded or lose your balance. If you feel that the room is spinning, you have vertigo. A sudden drop in blood pressure or being dehydrated can make you dizzy. Many people feel lightheaded if they get up too quickly from sitting or lying down. Dizziness usually gets better by it...
Your pleura is a large, thin sheet of tissue that wraps around the outside of your lungs and lines the inside of your chest cavity. Between the layers of the pleura is a very thin space. Normally it's filled with a small amount of fluid. The fluid helps the two layers of the pleura glide smoothly past each other as ...	What is (are) Pleural Disorders ?	Your pleura is a large, thin sheet of tissue that wraps around the outside of your lungs and lines the inside of your chest cavity. Between the layers of the pleura is a very thin space. Normally it's filled with a small amount of fluid. The fluid helps the two layers of the pleura glide smoothly past each other as you...
Having HIV weakens your body's immune system. It destroys the white blood cells that fight infection. This puts you at risk for opportunistic infections (OIs). OIs are serious infections that take advantage of your weak immune system. These infections are less common and less severe in healthy people. People who hav...	What is (are) HIV/AIDS and Infections ?	Having HIV/AIDS weakens your body's immune system. Your immune system normally fights germs that enter your body. When HIV/AIDS makes it weak, it can't fight germs well. This can lead to serious infections that don't often affect healthy people. These are called opportunistic infections (OIs). There are many types o...
A genetic brain disorder is caused by a variation or a mutation in a gene. A variation is a different form of a gene. A mutation is a change in a gene. Genetic brain disorders affect the development and function of the brain. Some genetic brain disorders are due to random gene mutations or mutations caused by envir...	What is (are) Genetic Brain Disorders ?	A genetic brain disorder is caused by a variation or a mutation in a gene. A variation is a different form of a gene. A mutation is a change in a gene. Genetic brain disorders affect the development and function of the brain. Some genetic brain disorders are due to random gene mutations or mutations caused by enviro...