Medical Matters

Early contact lenses were hard lenses made of a material that had no ability to transmit oxygen or carbon dioxide, which made it unhealthy for the cornea of the wearer over the long term.

The liver manufactures cholesterol (ko-LES-ter-all) at the precise rate required by the body. It's used to build important structures like cell membranes, hormones, and Vitamin D.

Whether you're a stay-at-home parent or not, you need time to run errands, take a night off, or take a brief trip every once in a while. You'll need to find the best caregiver possible when you turn the child over to the care of another person.

Heartburn is a burning sensation felt deep inside the chest, behind the breastbone. Heartburn is caused by a backflow of stomach acids into the esophagus (ee-SOF-ah-gus), which is the tube that carries food from the mouth to the stomach.

Bicycles are a big part of many kids' lives, but it's important to keep in mind that a bicycle is a vehicle, not a toy. Many children are injured each year in bicycle accidents that could've been prevented.