Dr. Yuan Yi Li MD

Getting your child vaccinated in the afternoon will help him or her to sleep better in the following 24 hours, according to a new study. The study reports that infants who were vaccinated after 1:30 in the afternoon could sleep longer the following day.A small variation in the body temperature is...

What is cholesterol?Cholesterol is primarily produced in the liver, which makes approximately 1,000 milligrams of cholesterol per day. However, it can also be produced by the cells lining the small intestines and also by each cell present in the body. Abnormally low cholesterol levels would mean...

What Are Petechiae?Petechiae can be described as marks or blotches that normally appear on the skin and are tiny, round, and purplish or reddish in color. Petechiae are usually pinpoint-sized. Minor hemorrhage (bleeding that is localized below the skin) is the source of petechiae.Although they...

Foot or ankle swelling is called edema. Many things, including high blood pressure and pregnancy, can cause this problem. Edema in your feet and ankles occurs when your body is unable to push blood and fluids in them up your legs, so that your ankles and feet swell. Swelling in the feet and ankles...

IntroductionOrthopnea is the medical term used when referring to the occurrence of dyspnea (shortness of breath) when you are lying flat. This symptom is often a sign of heart failure. However, orthopnea can also be due to other health conditions. Dyspnea (shortness of breath) is not the same with...

IntroductionThe only way to prevent serious and life-threatening diseases such as meningitis is through vaccination. Meningitis can also be caused by viral, bacterial, and fungal infections. The infection usually affects the meninges or membranes that enclose the brain and spinal cord. Although...