What Is the Liquid in a Thermometer?
What Is the Liquid in a Thermometer? Most thermometers are sealed glass tubes with liquid inside. The liquid is either mercury, which is silvery, or alcohol, which is...
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What Is a Fever?
Fever is a body temperature that is higher than normal. (If your body temperature is higher than 98.6 degrees Fahrenheit when you are sick, you probably have a fever.)...
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Why Do We Have Tonsils?
Why Do We Have Tonsils? Tonsils are lymphatic tissues on either side of the back of the human throat that help fight infections. The purpose of these lymphatic tissues...
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What Causes a Cold?
What Causes a Cold? Common colds are caused by a type of germ known as a cold virus. This germ infects your nose and throat, causing you to sneeze and sniffle, and your...
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Team of Surgeons Treated a Man for Candy Crush Thumb
A team of San Diego doctors said a 29-year-old man was treated for “Candy Crush thumb” after he tore a tendon from playing the smartphone color-matching...
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