Cycling Trips
Each year, many people decide to take a trip on their bicycles. The trip may last for seve...
What causes people to sneeze? Whenever something irritating enters the nose, we sneeze to cause that irritant to be expelled. The medical term for sneezing is sternutation. The air that is moving out of our noses can reach a speed of 100 miles per hour, and muscles far from the nose are involved in each sneeze. The next time you sneeze, pay close attention and you will notice that even muscles in your chest and abdomen are contracting. Your eyes close as well. Many things can make people sneeze, such as dust, pepper, or cold air. Some people have allergies that cause them to be sensitive to certain things, such as pet dander or pollen. If a person who is allergic to oak pollen encounters this allergen, one of the body's first defenses is to sneeze in order to remove the irritant. Many people sneeze when they look into bright light. Most anything can trigger one of our most common experiences, the sneeze.
Each year, many people decide to take a trip on their bicycles. The trip may last for seve...
Scientists say that most people in the United States get far less sleep each night than th...
Coal is a natural resource found in the United States. Coal is a source of electricity for...