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The thymus is a small organ in your upper chest, under your breastbone. Before birth and during childhood, the thymus helps the body make a type of white ...
What is thyroid cancer? Thyroid cancer is a cancer that starts in the tissues of the thyroid. Your thyroid is a small, butterfly-shaped gland in the front ...
Your thyroid is a small, butterfly-shaped gland in the front of your neck. It makes hormones that control the way the body uses energy. These hormones affect ...
Your thyroid is a small, butterfly-shaped gland in the front of your neck. It makes hormones that control the way the body uses energy. These hormones affect ...
What are ticks? Ticks are small parasites. They may look like insects, but they have eight legs and are related to spiders. Ticks feed on the blood of ...
Tinea is the name of a group of diseases caused by a fungus. Types of tinea include ringworm, athlete's foot and jock itch. These infections are usually not ...
Tinnitus is often described as a ringing in the ears. It also can sound like roaring, clicking, hissing, or buzzing. It may be soft or loud, high pitched or low ...
Mastering new skills such as how to walk, talk, and use the potty are developmental milestones. It is exciting to watch your toddler learn new skills. The normal ...
Most young children get sick. It is hard for parents to know what is serious. You can learn what the common warning signs are. In the end, trust your intuition. ...
Food provides the energy and nutrients that young children need to be healthy. Toddlers are learning to feed themselves and to eat new foods. They should ...
Fourteen of the 26 bones in your feet are in your toes. The toes, particularly your big toe, help you move and keep your balance. Playing sports, running, stubbing ...
Your tongue helps you taste, swallow, and chew. You also use it to speak. Your tongue is made up of many muscles. The upper surface contains your taste buds. ...
What are tonsils? Tonsils are lumps of tissue at the back of the throat. There are two of them, one on each side. Along with the adenoids, tonsils are ...
What is tooth decay? Tooth decay is damage to a tooth's surface, or enamel. It happens when bacteria in your mouth make acids that attack the enamel. ...
What are teeth? Your teeth are made of a hard, bonelike material. There are four parts: Enamel, your tooth's hard surface Dentin, the hard yellow part ...
Tornadoes are nature's most violent storms. They are rotating, funnel-shaped clouds that extend from a thunderstorm to the ground. Their whirling winds can reach ...
If you have Tourette syndrome, you make unusual movements or sounds, called tics. You have little or no control over them. Common tics are throat-clearing ...
Toxoplasmosis is a disease caused by the parasite Toxoplasma gondii. More than 60 million people in the U.S. have the parasite. Most of them don't get sick. But the ...
Your trachea, or windpipe, is one part of your airway system. Airways are pipes that carry oxygen-rich air to your lungs. They also carry carbon dioxide, ...
A transient ischemic attack (TIA) is a stroke that lasts only a few minutes. It happens when the blood supply to part of the brain is briefly blocked. Symptoms ...
