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The following Episodes are available in full on-demand. Watch them below or visit the individual episode pages.

(note: Episodes from Seasons 1-3 are not available online).

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Spinal Cord Injury

(Source: NIH / National Institute of Neurological Disorders and Stroke) Your spinal cord is a bundle of nerves that runs down the middle of your back. It carries signals back and forth between your body and your brain. A spinal cord injury disrupts the signals. Spinal cord injuries usually begin with a blow that fractures or dislocates your vertebrae, the bone disks that make up your spine. Most injuries don't cut through your spinal cord. Instead, they cause damage when pieces of vertebrae tear into cord tissue or press down on the nerve parts that carry signals.

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Dizziness

(Source: NIH / MedlinePlus) Dizziness is a term that is often used to describe two different symptoms: lightheadedness and vertigo. Light-headedness is a feeling like you might faint. Vertigo is a feeling that you are spinning or moving, or that the the world is spinning around you. Most causes of dizziness are not serious and either quickly get better on their own or are easily treated.

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713
Psoriasis

(Source: National Psoriasis Foundation) Psoriasis is a chronic, autoimmune disease that appears on the skin. It occurs when the immune system sends out faulty signals that speed up the growth cycle of skin cells. Psoriasis is not contagious. There are five types of psoriasis. The most common form, plaque psoriasis, appears as raised, red patches covered with a silvery white buildup of dead skin cells. Psoriasis can occur on any part of the body and is associated with other serious health conditions, such as diabetes, heart disease and depression.  Psoriasis is the most common autoimmune disease in the U.S. As many as 7.5 million Americans have psoriasis.

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801
Chronic Pain Management

(Source: NINDS / NIH) While acute pain is a normal sensation triggered in the nervous system to alert you to possible injury and the need to take care of yourself, chronic pain is different. Chronic pain persists. Pain signals keep firing in the nervous system for weeks, months, even years. There may have been an initial mishap -- sprained back, serious infection, or there may be an ongoing cause of pain -- arthritis, cancer, ear infection, but some people suffer chronic pain in the absence of any past injury or evidence of body damage. Many chronic pain conditions affect older adults.

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802
Medical Radiation

(Source: The American Registry of Radiologic Technologists)  Medical Radiation--X rays are a form of radiant energy like light or radio waves. Just like light and radio waves, they can pass easily through some things and are absorbed by others. In the human body, some tissues are better at absorbing the radiation than others. The images made by x-ray beams come from these differences. Bone stops x rays efficiently, making them look white in an image; air, like in the lungs, does not absorb radiation much at all, and looks black in the image. Sometimes the images are still, like pictures from a camera, and sometimes they show movement, like a video camera.

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