Dr. Jennifer L Mark M.D.

Recommended Articles

• Stretching Before Running Does Not Prevent or Cause Injury

  According to a new and interesting study stretching before running may not prevent or cause injury but switching the routine increases the risk of injury considerably. The results of the study presented at the annual meeting of the American Academy of Orthopaedic Surgeons provided a surprise twist...

• What Are the Symptoms of Osteoporosis?

  Osteoporosis refers to a very common, progressive condition, characterized by weak and fragile bones. The bones are so weak that even a small strain may result in fracture. The bones lose its density gradually during the early years and this stage, which is the precursor of osteoporosis, is known as...

• What Does It Mean If Your Nipple Is Inverted?

  What are inverted nipples?Inverted nipples, also called as nipple retraction, nipple inversion, or invaginated nipple, is a condition in which the nipples point inward instead of out. In some women, nipple retraction can be present at birth. In some cases, the condition may develop due to trauma or...

• Is Hashimoto's Thyroiditis a Genetic Disorder?

  Hashimoto’s thyroiditis is an autoimmune disease, wherein the immune system turns against the body's healthy cells. In people with Hashimoto’s disease, their immune system attacks the thyroid gland. The thyroid gland is a small gland located at the base of the neck just below the Adam's apple....

• Different Blood Types and What They Mean

  The ABO (A, B, AB, or O) blood group system is used to classify different types of antibodies in the plasma and antigens in the red blood cells (RBCs). The ABO blood group and RhD antigen determine the type of blood that is a perfect match for blood transfusions. The four ABO blood groups are: ...

• Sperm Cells Mimic Embryonic Stem Cells

  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...