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  1. 2022年11月16日 · Cut back on screen time starting 2-3 hours before bed. Dim the brightness on your devices. This is often called night mode or dark mode. It changes the background from white to black. Install blue ...

  2. The leading source for trustworthy and timely health and medical news and information. Providing credible health information, supportive community, and educational services by blending award ...

  3. 2022年9月16日 · Symptoms include dry, irritated eyes and blurred vision. Blue light may also damage your retinas. That’s called phototoxicity. The amount of damage depends on wavelength and exposure time ...

  4. www.webmd.com › a-to-z-guides › swollen-ankles-and-feetSwollen Ankles and Feet - WebMD

    • Risks
    • Treatment
    • Causes

    Swollen ankles and swollen feet are common and usually not cause for concern, particularly if you have been standing or walking a lot. But feet and ankles that stay swollen or are accompanied by other symptoms could signal a serious health problem. WebMD looks at some possible causes of foot and ankle swelling and offers advice on when to call the ...

    Foot or ankle injury. An injury to the foot or ankle can lead to swelling. The most common is a sprained ankle, which occurs when an injury or misstep causes the ligaments that hold the ankle in place to be stretched beyond their normal range. To reduce the swelling from a foot or ankle injury, rest to avoid walking on the injured ankle or foot, us...

    Lymphedema. This is a collection of lymphatic fluid in the tissues that can develop because of the absence of or problems with the lymph vessels or after the removal of lymph nodes. Lymph is a protein-rich fluid that normally travels along an extensive network of vessels and capillaries. It is filtered through the lymph nodes, which trap and destro...

  5. 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 ...

  6. 2021年12月16日 · Also known by the name slate gray nevus, Mongolian blue spots often appear right at birth or in the first few weeks of life. They are harmless and do not need to be removed. These marks may look ...

  7. 2023年11月14日 · Remote monitoring that lets your doctor check up on you without your leaving your home. For example, a device might take your vital signs and send them to your doctor. Telemedicine vs. telehealth ...