Dr. David L. Hansen MD

There exist many symptoms that make the mononucleosis disease similar to other diseases, which makes it very difficult to distinguish it from other infections. Doctors administer treatment of the patient by giving him or her a physical test. This annual test checks out the patient's medical history....

Blisters can occur for numerous reasons. Although they are not often serious, the appearance of blisters itself can be very off-putting. A blister is a fluid-filled bubble that develops under the skin. The watery liquid under the blister is often clear, which is called serum.When blisters break, the...

Sperm cells in the testicles are able to mimic the embryonic stem cells and can develop into any of the adult cells in the body. These germ cells, also called spermatogonial cells, belong to the adult stem cells and are the precursor of sperm cells.Based on a new study published in the online...

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 vitamin D?Vitamin D is a unique fat-soluble vitamin that plays a significant role in many aspects of health. Also referred to as the sunshine vitamin, it stands out from other types of vitamins since the body can produce vitamin D through sunlight exposure. With 20-25 minutes of daily sun...

The appendix found in the human body was long the subject of debate among doctors all over the world in their journals and reviews. However, very few of these debates have turned out to be worthy of serious consideration because the majority of doctors have conceded the fact that the appendix serves...