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  1. 2021年9月9日 · What Is an Arterial Blood Gas Test (ABG)? An arterial blood gas (ABG) test measures oxygen and carbon dioxide levels in your blood. It also measures your body’s acid-base (pH) level, which is...

  2. 2020年7月10日 · ADHD affects an estimated 3% to 5% of children and adults in the U.S. Get ADD and ADHD information here including its causes, diagnosis, and promising treatments.

  3. 2010年12月16日 · However, thorough studies comparing omega-3s to placebo are needed to prove this memory benefit from supplements. Huperzine A. Also known as Chinese club moss, this natural medicine works in a ...

  4. 2024年4月10日 · Fatigue. Bone and joint pain (especially in your back) Bone loss. Muscle weakness, aches, or cramps. Mood changes, such as depression. Vitamin D is essential for healthy bones, & a lack of it can ...

    • Overview
    • Eye Fatigue
    • Symptoms
    • Screen & Environment
    • Habits
    • Routine

    This article is about eye fatigue, a common condition that can be caused by intense eye use and digital devices. It provides information on the symptoms of eye fatigue, how to prevent it, and what to do if the problem persists.

    Anything that requires intense eye use can cause fatigue, such as reading, writing and driving. Digital devices may also be linked to eye fatigue because you tend to blink less often when looking at a computer screen.

    Sore or irritated eyes, trouble focusing, dry or watery eyes, blurred or double vision and increased sensitivity to light are some symptoms of eye fatigue. Lack of sleep may lead to repeated eye irritation.

    Place your computer screen 20-26 inches away from your eyes and a little below eye level; regularly clean off dust and fingerprints from the surface; choose screens that tilt and swivel; use a glare filter for your screen; change lighting to get rid of glare and harsh reflections; use an adjustable chair; place a document holder next to your comput...

    Try the 20-20-20 rule every 20 minutes by looking at something about 20 feet away for 20 seconds ; post a note "Blink" on your computer as reminder ; take regular breaks from computer work .

    Apply warm washcloth soaked in warm water on tired dry eyes (keep closed) ; use artificial tears when they feel dry ; help prevent dry eyes while indoors by using air cleaner filtering dust & humidifier adding moisture .

  5. Ovulation usually happens 14 days before your next period begins, but it can vary from month to month -- even in women with regular cycles. To get a better sense of when you’re ovulating, chart ...

  6. 2023年10月31日 · Some studies show that ginseng may boost your immune system. There's some evidence that one particular type of American ginseng extract might lower the number and severity of colds in adults ...

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