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Emergency Medicine is a branch of medicine that deals with patients in need of immediate medical attention. Those who study emergency medicine often work in the emergency room (ER) of a hospital.

Information technology refers to the “acquisition, processing, storage and dissemination of vocal, pictorial, textual and numerical information by a microelectronics-based combination of telecommunications and computing”. It covers various areas including processes, computer software and hardware, programming languages and data constructs.

Nothing ruins a good night's sleep like the sound of someone else snoring. This category is devoted to that irksome sound, its causes, and possibly its cessation.

Sleep apnea is a serious medical condition. It is marked by a reduction or cessation in respiration during sleep.

Insomnia is a sleep disorder which someone is not able to fall or stay asleep as long as they need. It can lead to unnecessary stress and irritable moods during the day.

Heartburn, a digestive disorder, is usually misunderstood as a heart problem but actually has nothing to do with the heart. It is a pain caused by stomach acid that travels back into the esophagus, which produces a burning sensation.

Pneumonia is an inflammation of the lung(s) caused by infection. The three main causes are fungi, bacteria and viruses. All questions concerning symptoms, causes and treatments can be found here.

A migraine headache is a recurring headache affecting only a portion of the head, which is coupled by nausea, sleep disruption, vomiting, visual disturbances and depression. It is approximately 3 times more common in women than in men.

Head injury refers to the damage of the skull, scalp, or brain. Injuries can be caused by traffic accidents, workplace accidents, falls, sports injuries, assaults, or bullets. The damage caused ranges from mild to severe brain injury.

Optic Neuritis is inflammation of the optic nerve which connects the eye to the brain. Its cause is unknown but possibly develops due to autoimmune disorder that is triggered from a viral infection. Ask questions about symptoms, treatments and preventions.

An inflammation of the fibrous or connective tissue of the body, Fibromyalgia is characterized by chronic widespread pain and a heightened and painful response to pressure, along with fatigue and joint stiffness. There is no recognized cure for fibromyalgia, but some treatments have been demonstrated to be effective in reducing symptoms.

Emphysema is a lung disease in which tissues needed to support the lungs are destroyed. Emphysema is one of the several diseases known collectively as chronic obstructive pulmonary disease (COPD). Emphysema is most often caused by smoking.

Diabetes is caused when the body does not produce or properly use insulin, a hormone needed to convert sugar, starches, and other foods to energy. Causes are not known, but appear to be both genetic and environmental, with being overweight and not getting exercise being contributing factors. This category is for questions about Diabetes, including Type 1, Type 2, Gestational, and Pre-diabetes, and all questions related to them.

Chronic obstructive pulmonary disease (COPD) is when a person has chronic bronchitis or emphysema. They have shortness of breath, and often need medications and supplemental oxygen.

Acid Reflux is also known as gastroesophageal reflux disease (GERD). It can be caused by a variety of reasons, but results in acids escaping from the stomach and moving up the throat.

An artificial pacemaker is a medical device that regulates the heartbeat via electrical impulses that are delivered by electrodes, which contracts the muscles of the heart. Pacemakers are given to people who have a slow natural pacemaker or those who have a cardiac obstruction blocking natural electrical impulses.

Cardiovascular means anything of, relating to, or involving the heart and the blood vessels (arteries and veins) A healthy heart and circulatory system is vital to life. Ask questions here about how to keep the cardiovascular system pumping.

Ventolin is the brand name for albuterol. Albuterol is used for a variety of respiratory conditions that involve bronchospasm. These include asthma, bronchitis, and emphysema.

This category is for questions about the respiratory issues dealing with asthma. Asthma is characterized by decreased levels of oxygen reaching the lungs due to an obstruction, resulting in "asthma attacks" or worse. There are millions of people with this disease. Here you can ask about its causes, symptoms, and treatment.

Bruises are formed when an impact on the skin breaks capillaries and causes bleeding into skin tissue while the skin does not break. Bruises change color over time as the body begins to heal itself. In most cases, it takes a bruise about 2 weeks to repair itself.

Questions in this category should focus on planning for the eventuality of fires, natural disasters and other emergencies.

CPR, cardiopulmonary resuscitation, is a technique combining cycles of chest compressions and rescue breaths to oxygenate and circulate blood to maintain life. Ask and answer questions regarding the CPR techniques, training and history.

First aid is the provision of initial care for an illness or injury. It is usually performed by a lay person to a sick or injured casualty until definitive medical treatment can be accessed.

Ambulances are a form of transportation for the injured or sick. Different ambulances are equipped for different levels of care or trauma.

Fire Bellied Toads, named for their brightly hued abdomens, are eight species of small frogs from the genus Bombina. Their red and yellow bellies serve as a warning to predators in the wild.

Founded by brothers Walt and Roy Disney in 1923, the Walt Disney Company has become the largest entertainment company in the world. They are leaders in film, television, travel, and other media industries.

The Duggars are the main casts of an American reality television show 19 Kids and Counting. A conservative Christian, the Duggar family consists of Jim Bob, Michelle Duggar and their 19 children.

Ask questions here about ensuring the safe transport and disposal of hazardous materials.

Adolf Hitler was a Nazi German totalitarian dictator during World War 2. He oversaw the genocide of millions of Jews.

Eva Hitler (née Braun) was the long-term partner of dictator, Adolf Hitler. She worked as a model and photographer, and often photographed Hitler and other high ranking members of the Third Reich. She married Hitler on April 29, 1945 in a civil ceremony, and the day after, the newlyweds committed suicide.