Dr. Haixin Norman Xu M.D.

The tongue is made up of different muscles that help us speak, swallow, chew, or taste food. So when we have a sore tongue, it can be quite hard to ignore.Although a sore tongue is not always a cause for concern, emergency medical attention may be required in some cases, such as rapid tongue...

What is yawning?Usually, yawning is associated with boredom, fatigue, and tiredness. Yawning is also very common in animals, such as dogs, monkeys, snakes, and carnivores. Yawning is also associated with numerous superstitious beliefs.In humans, yawning is considered as a purposeful non-verbal...

Influenza Influenza, also commonly called as the flu, is a highly contagious respiratory infection caused by viruses, particularly influenza A or influenza B. These viruses usually infect the throat, nose, and lungs. Although the flu causes mild symptoms in most people, it can also cause severe...

Background noise from the TV, when we leave it on without watching it, may affect young children, reports a new study. The study also reports that children in U.S. are exposed to an average of four hours of background noise from the TV. The results from the study were presented in the International...

Swelling of the ankles and feet are a common everyday experience. Either you or a loved one may have experienced ankle swelling at some point of your lives. It is that common and is not a usual cause for concern, especially if you have been standing or walking for a long period of time. However,...

Take a Walk Down Memory LaneWalking speed and strength of hand grip can help predict the risk of stroke and memory problems in old age, says a new study. “This forms a very basic test to predict the odds of getting these conditions in old age," says Erica C. Camargo MD, PhD. A decrease in walking...