Conditions & Diseases

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A neurologist studies the nervous system, which is composed of the brain, the spinal cord and the peripheral nervous system. This includes any part of the body, such as the eyes, ears and skin, that receive information through the senses.

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  • Does amnesia like in the movie Memento exist?

    Q: Does amnesia like in the movie Memento exist?

    A: Amnesia is a medical term that refers to a loss of ability to retrieve memories relating to things like facts and experiences; though the Mayo Clinic indicates that it's theoretically possible that a total loss of personal identity could occur in real life, such cases are extremely rare. In the real world, amnesia is much more subtle than the film "Memento" makes it out to be, and amnesia sufferers are usually only missing certain abilities related to memory, such as the ability to learn new things. There are multiple approaches to treating amnesia, and while there is no specific cure for the condition as a whole, taking the "Memento" approach of tattooing information on one's body isn't an accepted medical solution.
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  • What causes gray hair?

    Q: What causes gray hair?

    A: There are many different reasons why hair turns gray, but the primary cause is genetics. Each of the hair follicles, where hair is produced, contains cells called melanocytes. These melanocytes produce the melanin needed to color hair; they gradually die in time so that hair will receive less melanin, according to KidsHealth.
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  • Where did meningitis come from?

    Q: Where did meningitis come from?

    A: According to Dr. Ananya Mandal for News-Medical.net, meningitis has been described in many ancient texts. Hippocrates even wrote about the disease is his medical books. For this reason, it is believed to have been around for many years.
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  • Can HIV be detected with a CBC test?

    Q: Can HIV be detected with a CBC test?

    A: HIV cannot be detected with a CBC test. To confirm the presence of HIV antibodies in the blood, a person must have the HIV Western blot and HIV ELISA tests, according to MedlinePlus.
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  • Why do men go bald?

    Q: Why do men go bald?

    A: The most common cause of male hair loss is androgenic alopecia, otherwise known as male-pattern baldness, states the American Hair Loss Association. Sufferers of this condition have hair follicles with a genetic sensitivity to a substance called Dihydrotestosterone, or DHT, which causes the hair's life cycle to shorten prematurely, leading to thinning and falling hair. Other causes of hair loss in men include illness, old age and lifestyle habits.
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  • What happens to amputated limbs?

    Q: What happens to amputated limbs?

    A: The Sisters of Providence Health System reports that amputated limbs are disposed of by the hospital or a patient makes his own arrangements for burial or cremation of the limb. The fate of an amputated limb is determined by the patient, and he must consent to either outcome.
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  • How can I improve foot health?

    Q: How can I improve foot health?

    A: Performing regular foot exercises is one way to protect feet from injury while improving total foot health, notes Harvard Health Publications from Harvard Medical School. One of the best ways to exercise the feet is to go out for a walk. Walking allows the foot to move through its full range of motion.
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  • Which way does a bedpan go?

    Q: Which way does a bedpan go?

    A: Place the curved, lipped end of the bedpan at the top of the buttocks or small of the back. This leaves the open end of the bedpan towards the thighs. In this manner, the buttocks does not slip into the pan.
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  • Why do you use a cane on the opposite side of an injured leg?

    Q: Why do you use a cane on the opposite side of an injured leg?

    A: Mayo Clinic explains that when a cane is used for extra support because of a leg injury or disability, it is held by the hand opposite the injury to move along with the injured leg for extra support. The cane is lifted at the same time as the affected leg when the stronger leg is firmly on the ground.
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  • How do you cure arthritis?

    Q: How do you cure arthritis?

    A: Health.com notes that while a cure for arthritis has yet to be developed, the pain and discomfort associated with arthritis can be alleviated by losing weight and exercising. Acupuncture and capsaicin cream can also be beneficial.
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  • Why do my knees hurt when I bend them?

    Q: Why do my knees hurt when I bend them?

    A: WebMD explains that pain that occurs when bending the knees is a common symptom of bursitis, a condition in which the sac of fluid that protects the knee joints becomes inflamed and irritated due to repeated bending, injury or overuse. Bursitis that is caused by kneeling is often referred to as "housemaid's knee" or "preacher's knee."
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  • How long can you live with full-blown AIDS?

    Q: How long can you live with full-blown AIDS?

    A: The U.S. Department of Health and Human Services' AIDS.gov website reports that people infected with the human immunodeficiency virus who progress to acquired immune deficiency syndrome have a life expectancy of around 3 years. People with AIDS and a severe opportunistic illness tend to survive only for approximately 1 year.
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  • What part of the body does cholera damage?

    Q: What part of the body does cholera damage?

    A: Cholera is a bacterial disease that directly affects the stomach and intestines. It causes a number of digestive problems and symptoms including diarrhea, vomiting and gastroenteritis, or stomach flu. These primary symptoms may have an effect on other parts of the body, notes Johns Hopkins Medicine Health Library.
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  • How do you pass a kidney stone?

    Q: How do you pass a kidney stone?

    A: Patients with kidney stones usually require plenty of water and appropriate pain medication to pass the painful objects through the urinary tract, and some people require surgery in extreme cases, according to the Mayo Clinic. MedicineNet explains that kidney stones pass from the kidneys, into the ureter, through the bladder and into the urethra before being flushed out of the body.
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  • How can you sleep better?

    Q: How can you sleep better?

    A: A person can improve his sleep patterns by establishing a bedtime ritual and sticking to it. Doing the same things at the same times each night tells the body it is time to start slowing down metabolism and getting ready for sleep. Mayo Clinic recommends relaxing activities that transition the body from the daily stresses to restful sleep.
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  • Can a stroke kill you?

    Q: Can a stroke kill you?

    A: According to the MedlinePlus Medical Encyclopedia, people can die from having a stroke. People who have ischemic strokes, which are those strokes that result from blood clots, are more likely to survive the stroke than people who have hemorrhagic strokes, or those strokes that result from bleeding in the brain.
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  • What causes a burning pain in the armpit?

    Q: What causes a burning pain in the armpit?

    A: While many conditions may cause irritation in the armpits, WebMD notes that intertrigo usually causes a burning sensation along with redness and itching. When a person has intertrigo, the moist, warm skin becomes irritated and often mildly infected. A rash also typically appears between the folds of the skin.
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  • What are causes for lower back pain?

    Q: What are causes for lower back pain?

    A: According to WebMD, the top causes of chronic lower back pain are degenerative disk disease, herniated disks and osteoporosis. The likelihood of developing these conditions is determined partially by genetics. The lower back has nociceptive fibers, which are responsible for sending pain signals to the brain. Some people have more nociceptive fibers than others, resulting in varying amounts of back pain despite leading similar lifestyles.
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  • What is the recovery time for carpal tunnel surgery?

    Q: What is the recovery time for carpal tunnel surgery?

    A: WebMD reports that full recovery from carpal tunnel surgery typically takes up to three months. The hand that received the surgery and the type of surgery performed influence the recovery time.
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  • What causes a staph infection?

    Q: What causes a staph infection?

    A: Staph infections are caused by the staphylococcus bacteria, according to Mayo Clinic. While these bacteria are typically found in the nose and on the skin of healthy people, when they enter the skin, bones, joints, lungs, heart or bloodstream, they cause infection. Staph infections are treated with oral antibiotics; in some cases, drainage of the affected area is also necessary.
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  • What is a shadow on the lung?

    Q: What is a shadow on the lung?

    A: A shadow on the lung sometimes indicates one of several lung diseases, including cancer or abscesses. Doctors often find the shadow on a chest X-ray, ordered for other reasons, including preparation for surgery, according to The Merck Manual Home Health Handbook.
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