Ask Doctor Cory.

Dear Dr. Cory:

What happens when you hold your nose and your mouth to stop from sneezing? Does it come out of your ears, or will it pop out your brain? Either way, I'm scared to try.

James Peng New York, New York

Dear James:

Trying to stop a sneeze is not a good idea. However, the results wouldn't be quite as damaging as you described. Holding your nose and closing your mouth when trying to hold back a sneeze can cause a lot of pressure in the nose and throat. This pressure can force viruses and bacteria up the eustachian tube into the sinuses and middle ear. The eustachian tube runs from the back of your throat to your middle ear. Once viruses and bacteria are in the sinuses and middle ear, it is easy for them to start an infection.

Sneezing is a natural way for the body to get rid of small things that irritate the nose and breathing passages.

Dr. Dr. Cory:

When I stay up late and cannot go to sleep, my mom says that I'm overly tired. What does this mean? Is this something that can happen very often?

Ashley Charlottesville, Virginia

Dear Ashley:

Yours is a good question for the holiday season, a time when sleep schedules often become irregular. Not being able to go to sleep, or insomnia, can have many causes. Sometimes, if you have had a very busy or exciting day, even though you may be tired, the stress of the day (even good stress) can make it hard for you to relax before going to sleep. This may be what your mom means when she says that you are overly tired.

Most children between the ages of five and twelve need eight to ten hours of sleep a night. Some children need more and some need less. To help you fall asleep more easily at night:

* Try to stick to a regular bedtime schedule.

* If there is a stressful situation, such as a big test that's coming up, talk with your family about what is bothering you.

* Use your bed just for sleeping; avoid using it for doing homework or watching television.

* About thirty minutes before going to bed, plan a winding-down time that includes a warm bath, teeth brushing, and reading.

* Avoid anything with caffeine, such as certain soft drinks, chocolate, tea, or coffee.

* Exercise regularly. It helps you fall asleep faster and sleep more deeply.

Sincerely,

Cory SerVaas, M.D.

Send your health questions to: "Ask Doctor Cory," U*S*Kids, P.O. Box 567, Indianapolis, IN 46206. This column does not replace your doctor's advice.