Dr. Gregory S. Harrah MD

Recommended Articles

• Are Vitamin D-Rich Foods Better than Vitamin D Supplements?

  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 Human Heart: Function, Chambers, and Location

  IntroductionThe human heart is a part of the cardiovascular system that is situated in the middle of the chest between the lungs. Its exact location is slightly positioned to the left and behind the sternum (breastbone). The size of the heart is approximately the size of your fist. Its function...

• What If I Refuse to Vaccinate My Baby?

  What are vaccine exemptions?There are state laws that establish compulsory vaccination for school children both studying in public and private schools as well as daycare facilities. However, certain exemptions may be offered for religious and personal or conscientious reasons in some states. What...

• Doctors and Specialists for Patients with Muscular Dystrophy

  Everyone is susceptible to Muscular Dystrophy, especially if it runs in your family. This disease involves the diminishing and weakening of muscles. It is also a progressive condition, meaning, it can get worse and worse if left untreated. Hence, health professionals highly recommend that you see...

• What Does Dark Stool Mean?

  A dark stool refers to a stool that is either black or dark red in color. You may pass dark bowel movements after consuming dark-colored foods or when an injury or bleeding is present in your gastrointestinal tract. If you pass dark or bloody stools, see your doctor immediately to rule out serious...

• Does the Pertussis Vaccine Have Any Contraindications and Side Effects?

  Pertussis is an infection of the upper respiratory system. The disease is highly contagious and spreads through the coughing and sneezing of an infected individual. This highly contagious and airborne disease is caused by the bacteria called Bordetella pertussis. The symptoms of pertussis typically...