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Allergens: Dust and Dust Mites What are dust allergens? Dust allergens are substances found in dust. They may include: Fabric fibers Lint Feathers Stuffing materials Animal protein (dander, saliva, urine, and body oils) Bacteria Mold and fungus spores Food particles Plants

Calculating a Due Date A typical pregnancy lasts, on average, 280 days, or 40 weeks—starting with the first day of the last normal menstrual period as day 1. An estimated due date can be calculated by following steps 1 through 3: First, determine the first day of your last

Stroke What is a stroke? A stroke, or brain attack, happens when blood flow to your brain is stopped. It's an emergency situation. Call 911 if you think you might be having a stroke or stroke symptoms. The brain needs a constant supply of oxygen and nutrients to work well. If the

Brain Tumors in Children What are brain tumors in children? A brain tumor is an abnormal growth of tissue in the brain. The brain is part of the central nervous system (CNS). The CNS also includes the spinal cord. The main parts of the brain are: Cerebrum. This is the front of

Allergens: Animals What is an animal allergen? Allergens found in animals are a common cause of allergic reactions. They are caused by the proteins found in an animal's: Skin (dander) Saliva Urine Household pets such as cats and dogs are the most common sources of animal

Cold vs. Allergy in Children: How to Tell the Difference Colds are infections of the upper respiratory tract (sinuses, nasal passages, throat, and larynx). They are caused by several different viruses. They are spread by: Touching a person with a cold, such as shaking hands, and

General Nutrition Guidelines During Cancer Treatment A healthy diet can help you feel better and stay stronger. It can also decrease side effects and support your immune system’s fight against cancer. The foods you choose to eat during cancer treatment will vary depending on side

Cystic Fibrosis Overview What is cystic fibrosis? Cystic fibrosis (CF) is an inherited disease of the glands that make mucus and sweat. People with CF get a defective gene from both parents. People who have one defective gene from one parent are called carriers. They don't have

Preventing Sports Injuries Exercise is good for the body. And with the correct safety steps, sports injuries can often be prevented. The quality of protective equipment—padding, helmets, shoes, mouth guards—has helped to improve safety in sports. But you can still be at risk of

Dental Implants What are dental implants? Dental implants are metal or ceramic fixtures that are inserted into the upper or lower jaw bones. They are meant to copy the roots of the tooth or teeth they are replacing. They are used to support a dental restoration, such as a crown