Dr. Jeanne S Sheffield MD

Fraternal twins definitionFraternal twins are commonly known as "non-identical twins" and can be simply defined as siblings who share the same womb but with different amniotic sacs and placentas. Biologically, they are said to be "dizygotic" meaning two different sperm cells fertilized two...

A new study has shown that phthalates, a common chemical found in a number of consumer products, are harmful to the mental and behavioral development of children. The results of the study are published in the journal, Environmental Health Perspectives. This chemical is an important component in...

Abnormal growth and division of the cells in the cervix leads to cervical cancer. The cervix is the part of the female body that connects the uterus to the vagina. The abnormal cells become invasive and they may invade other organs, like lungs, liver, bladder, and even rectum. As the disease...

OverviewA biopsy is a procedure that involves the removal of a sample tissue in the body to examine it closely under a microscope. The tissue is mainly examined to diagnose a certain disease. Some may use a needle or surgical methods to remove any lumps or suspicious nodules in the body. Some...

Morning sickness is caused by your body releasing the pregnancy hormone HCG- which is released at it's highest levels during the first trimester.As many as 90% of all pregnant women experience some form of morning sickness during pregnancy.  Although not all the morning sickness remedies may be...

What is a biopsy?A biopsy is a medical procedure, which is mostly used in diagnosing cancer. In this procedure, a small tissue sample is taken from your body for a closer examination under the microscope. A biopsy is usually recommended by your doctor if initial tests in your body suggest an...