bifocals
Eyeglasses with divided lenses. The two parts of each lens have different strengths, allowing the wearer to focus the eye for either near or distant vision.
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When a “Chest Cold” Is Something More
You probably know the feeling of having cold symptoms that move from your head into your chest. Many people call this a chest cold. The medical term for it is “acute bronchitis.” Bronchitis is an i...
