Search Results

The Lungs in Pregnancy Respiratory system The respiratory system is made up of the organs involved in the exchange of oxygen and carbon dioxide. Its main job is to move fresh air (oxygen) into your body and move waste gases (carbon monoxide). out of your body. The system includes

Hypnosis What is hypnosis? Hypnosis (hypnotherapy), like sleep, puts the mind in an altered, relaxed state. Under hypnosis, the mind can still reach memories, sensations, and other thoughts. Hypnosis is often used for things such as breaking bad habits, controlling pain, and

Allergens: Pollen What is pollen? Pollen is the tiny egg-shaped male cells of plants, including trees, grasses, and weeds. Pollen is microscopic in size. It is the most common cause of hay fever (seasonal allergic rhinitis). Which plants produce pollen that cause allergic

Types of Genetic Testing Genetic tests look for changes in a person's genes. They can also look for changes in the amount, function, or structure of key proteins coded by genes. Genetic tests can look at the DNA or RNA that play a role in certain conditions. Abnormal test results

Risks of Pregnancy Over Age 30 Many women wait until later in life to have children. In the U.S., birth rates for women in their 30s are at the highest levels in four decades. But an older mother may be at increased risk for things such as: Miscarriage Birth defects Twins High

Wheat Allergy Diet for Children General guidelines for wheat allergy When your child has a food allergy, they must follow an allergen-free diet. This means your child can't have the food they are allergic to, or any products containing that food. The items that your child is

Soy Allergy Diet for Children General guidelines for soy allergy Your child has been diagnosed with a soy allergy. This means that your child's immune system overreacts to soy proteins. The allergy may go away when your child is older. But as long as your child has the allergy

Cancer and Tobacco How are tobacco and cancer linked? Using tobacco makes it more likely that you will get cancer. This includes lung, mouth, throat, bladder, and other cancers. In fact, 1 out of 5 people with cancer in the U.S. got it from smoking. All tobacco products, such as

Anatomy and Function of the Heart Valves What are heart valves? The heart has four chambers: two upper chambers (atria) and two lower chambers (ventricles). Blood passes through a valve before leaving each chamber of the heart. The valves prevent the backward flow of blood

Blood Donations and Blood Banking What is blood banking? A blood bank is a place where blood is collected and stored before it is used for transfusions. Blood banking takes place in the lab. This is to make sure that donated blood and blood products are safe before they are used