Yujie Cheng M.D.

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• What Are Ketones?

  Almost every cell in the body has a primary source of energy, which is usually glucose. However, when the body doesn't have enough glucose, the liver responds by producing chemicals known as ketones, converting stored fatty acids into ketone bodies. Ketones are used as a backup fuel source when...

• Different Types of Physicians Explained

  Doctors or physicians are categorized according to different factors including medical specialties and subspecialties. Most doctors specialize in a specific area of medicine. This article provides a summary of the different types of doctors in the medical field. AllergistsAllergists are also...

• Why Do Some Vaccines Have to Be Injected Twice?

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• What Are the Complications of Mumps?

  Mumps is a contagious illness caused by a virus. It can be passed through direct contact from one person to another. There are numerous problems that come along with mumps. They can be worrying, but they aren’t very serious and often improve as the illness passes. Common complications...

• What Causes Blisters and How to Get Rid of a Blister

  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...