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  1. 2021年12月16日 · Congenital dermal melanocytosis — more commonly known as Mongolian blue spots — is a kind of birthmark commonly found in newborns. Also known by the name slate gray nevus, Mongolian blue spots...

    • Chloe Zomorodi
  2. 2023年8月18日 · In November 2021, the World Health Organization (WHO) first identified the Omicron mutation of the COVID-19 virus as a variant of concern. It quickly became the most common strain worldwide.

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    Normal body temperature averages 98.6 degrees. With hypothermia, core temperature drops below 95 degrees. In severe hypothermia, core body temperature can drop to 82 degrees or lower.

    During exposure to cold temperatures, most heat loss -- up to 90% -- escapes through your skin; the rest, you exhale from your lungs. Heat loss through the skin happens primarily through radiation and speeds up when skin is exposed to wind or moisture. If cold exposure is due to being immersed in cold water, heat loss can occur 25 times faster than...

    The hypothalamus, the brain's temperature-control center, works to raise body temperature by triggering processes that heat and cool the body. During cold temperature exposure, shivering is a protective response to produce heat through muscle activity. In another heat-preserving response -- called vasoconstriction -- blood vessels temporarily narro...

    Normally, the activity of the heart and liver produce most of your body heat. But as core body temperature cools, these organs produce less heat, in essence causing a protective \\"shut down\\" to preserve heat and protect the brain. Low body temperature can slow brain activity, breathing, and heart rate.

    Confusion and fatigue can set in, hampering a person's ability to understand what's happening and make intelligent choices to get to safety.

  3. 2022年9月16日 · Retinal Disorders. Conjunctivitis (Pinkeye) Corneal Diseases. Eyelid Problems. Vision Changes. Problems With Contact Lenses. 9 min read. Most people have eye problems at one time or another. Some ...

  4. 2021年9月17日 · Symptoms of Gastroenteritis. With gastroenteritis, the main symptoms you probably have are watery diarrhea and vomiting. You might also have stomach pain, cramping, fever, nausea, and a headache ...

  5. 2021年10月31日 · Causes of Stomatitis: Canker Sores and Cold Sores. Canker Sores. Nobody knows what exactly causes canker sores, but many things may contribute to their development, such as certain medications ...

  6. 2022年8月12日 · Bipolar disorder, also known as manic depression, is a mental illness that brings severe high and low moods and changes in sleep, energy, thinking, and behavior. People who have bipolar disorder ...