Curvature of the penis
Curvature of the penis is an abnormal bend in the penis that occurs during erection. In adults, it is most often due to Peyronie disease.
The Basics
Alzheimer disease
Animation
Lyme disease
Animation
Alcoholic liver disease
Animation
Crohn disease
Animation
Legionnaire disease - organism legionella
Illustration
Tertiary lyme disease
Illustration
Lyme disease
Illustration
Substantia nigra and Parkinson disease
Illustration
Prevention of heart disease
Illustration
Crohn disease - X-ray
Illustration
Crohn disease - affected areas
Illustration
Depression and heart disease
Illustration
Cat scratch disease
Illustration
Creutzfeldt-Jakob disease
Illustration
Inflammatory bowel disease - series
Presentation
Alzheimer disease - Animation
Imagine waking up this morning, and not being able to remember your own name, or recognize your spouse? While Alzheimer disease is a more gradual process, over time it can destroy memory to the point where people can't even remember the simplest and most important details of their lives. Let's talk more about Alzheimer disease. Alzheimer disease is a type of dementia, a loss of brain function that makes it harder and harder to think and speak. To understand what causes Alzheimer, we need to look inside the brain. In a normal brain, nerves send messages to one another. In people with Alzheimer disease, abnormal proteins clump in the brain, damaging nerve cells so they can no longer send the messages needed to think clearly. So, why do some people get Alzheimer, and others do not?Getting older itself doesn't cause Alzheimer disease. It's not a part of the normal aging process. Alzheimer does seem to run in families, though. So if you have a close relative, like a sister or parent, with Alzheimer, you may be more likely to get the disease. Usually when Alzheimer disease starts, people have trouble remembering simple things, like their phone number, or where they put their car keys. But, as the disease progresses, memory loss gets worse. People with Alzheimer find it hard to have conversations or complete simple tasks, like getting dressed. They can also become angry or depressed. Those in the later stages of the disease can no longer care for themselves. They lose the ability to recognize even close family members. To diagnose Alzheimer disease, doctors prescribe tests of mental ability. They also prescribe medical tests to rule out diseases that can make it harder to think clearly, such as a brain tumor or stroke. As far as treatments for Alzheimer disease, right now, there isn't a cure. A few drugs can slow memory loss and control depression and aggressiveness from the disease. Despite what you may have read, there isn't any proof that vitamins or other supplements can prevent or treat Alzheimer. However, eating a low-fat diet that's high in vitamin E and C, and rich in omega-3 fatty acids may keep your brain healthier. Alzheimer disease is different in each person. Some people decline quickly and die within just a few years, while others can live for two decades with the disease. If you have a family member with Alzheimer, talk to your doctor about ways to protect your own memory. And, call right away if you have any significant memory loss. Though it may be normal forgetfulness that comes with getting older, the sooner you get it checked out, the earlier you can start treatment if you need it.
Lyme disease - Animation
Having a tick attached to your body isn't just getting a little too close to nature. The tick can make you seriously ill with Lyme disease. Lyme disease is caused by bacteria called Borrelia burgdorferi. Blacklegged ticks carry these bacteria. The ticks pick up the bacteria when they bite mice or deer that are infected with Lyme disease. You can get the disease if you are bitten by an infected tick, mostly in northeastern states and on the West Coast. The good news is that usually a tick has to be attached to your body for 24 to 36 hours to infect you. The bad news is that blacklegged ticks are so small they're almost impossible to see. Many people with Lyme disease never even see a tick on their body. But most people bitten by a tick do NOT get Lyme disease. So, how do you know for sure that you have Lyme disease?The flu-like symptoms of Lyme disease usually start days or weeks after you've been bitten. You might have Itching all over your body; Chills, fever, and light headedness; Or perhaps a Headache, muscle pain, and a stiff neck. You'll probably see a "bull's eye" rash on your body. It can get pretty big. After a few weeks, the muscles in your face might feel weak or even paralyzed. Your knees and other joints may swell and hurt. You might even notice your heart skipping some beats. Eventually, your muscles might move strangely, you may feel numbness or tingling, and you may start to have trouble speaking. A doctor will test your blood for antibodies that are trying to fight the bacteria in your blood. One of these tests is called the ELISA test, and you'll often have a second test called the Western blot test to confirm you have Lyme disease. To treat Lyme disease, you may need to take antibiotics for up to a month. Pain medicines from the drug store can help soothe your joint stiffness. If it's caught early, Lyme disease is pretty easily treated. Without treatment, you can have heart, muscle, and even nerve problems. So the next time you're out in the woods or high grass, wear protective clothing, and do check yourself for ticks once you get home.
Alcoholic liver disease - Animation
Long-term alcohol abuse can lead to dangerous damage called alcoholic liver disease. Let's talk today about alcoholic liver disease. Alcoholic liver disease usually occurs after years of drinking too much. The longer you've abused alcohol, and the more alcohol you've consumed, the greater likelihood you will develop liver disease. Alcohol may cause swelling and inflammation in your liver, or something called hepatitis. Over time, this can lead to scarring and cirrhosis of the liver, which is the final phase of alcoholic liver disease. The damage caused by cirrhosis is unfortunately irreversible. To determine if you have alcoholic liver disease your doctor will probably test your blood, take a biopsy of the liver, and do a liver function test. You should also have other tests to rule out other diseases that could be causing your symptoms. Your symptoms may vary depending upon the severity of your disease. Usually, symptoms are worse after a recent period of heavy drinking. In fact, you may not even have symptoms until the disease is pretty advanced. Generally, symptoms of alcoholic liver disease include abdominal pain and tenderness, dry mouth and increased thirst, fatigue, jaundice (which is yellowing of the skin), loss of appetite, and nausea. Your skin may look abnormally dark or light. Your feet or hands may look red. You may notice small, red, spider-like blood vessels on your skin. You may have abnormal bleeding. Your stools might be dark, bloody, black, or tarry. You may have frequent nosebleeds or bleeding gums. You may vomit blood or material that looks like coffee grounds. Alcoholic liver disease also can affect your brain and nervous system. Symptoms include agitation, changing mood, confusion, and pain, numbness, or a tingling sensation in your arms or legs. The most important part of treatment is to stop drinking alcohol completely. If you don't have liver cirrhosis yet, your liver can actually heal itself, that is, if you stop drinking alcohol. You may need an alcohol rehabilitation program or counseling to break free from alcohol. Vitamins, especially B-complex vitamins and folic acid, can help reverse malnutrition. If cirrhosis develops, you will need to manage the problems it can cause. It may even lead to needing a liver transplant.
Crohn disease - Animation
Living with Crohn disease can be a constant gamble, hoping this won't be the day when your disease flares up. Crohn disease is a type of inflammatory bowel disease. It's caused by a malfunction in the body's immune system. Normally, the immune system protects against bacteria and other foreign invaders. But in people with Crohn disease, it mistakenly attacks the intestines, causing them to swell up and thicken. As a result, people with Crohn disease have bouts of severe abdominal pain, diarrhea, and pain with bowel movements. They can lose their appetite, feel tired, and lose weight without meaning to. Some have severe mouth sores. If you've been experiencing any of these symptoms, your doctor can test for Crohn with a colonoscopy using a scope to look at your colon from the inside. A wireless video capsule may be swallowed to look at the small intestine. Blood tests or other imaging studies may be needed as well. If you're concerned about Crohn, stop smoking. Smoking can increase your chance of getting Crohn disease and once you have it smoking can make the condition worse. Medicines can help with the symptoms of Crohn disease. There are medicines to control diarrhea, and pain relievers to help with abdominal cramps. There are also medicines that quiet the overactive immune response that causes Crohn. Changing your diet may make a big difference in preventing or reducing symptoms. But the diet that works well for you may be different than the one that works for others. Eating several small meals a day instead of three big ones prevents your intestines from having to process large amounts of food at once. Your doctor may also recommend that you drink lots of water, and avoid high-fiber and high-fatty foods, as well as any foods that you know make you gassy, perhaps beans or broccoli. You may also need to take iron, B12, and other vitamin and mineral supplements if your Crohn is preventing you from getting enough nutrients through your diet. If medicines and diet changes aren't enough to reduce your symptoms, and you develop bleeding or an infection in your intestines, you may need a procedure called a bowel resection to remove the diseased part of your intestines. This procedure won't cure Crohn, but it can help control the complications of the disease. If you're experiencing Crohn symptoms, like stomach pain, severe diarrhea, or unplanned weight loss, call your doctor. Although there's no cure for Crohn, treatments can relieve some of the uncomfortable symptoms, prevent complications, helping improve your quality of life.