Dr. Gretchen Heidt Johnson M.D.

Recommended Articles

• What Is the Purpose of the Hormone Prolactin?

  What is prolactin?Prolactin or luteotropic hormone (LTH) is a peptide hormone, which promotes milk secretion in female mammals. This hormone also plays a significant role in pancreatic development, immune system regulation, and metabolism. When women become pregnant, their prolactin levels increase...

• Is Tonsillitis Contagious?

  What is tonsillitis?Tonsils are two glands located at the back of the throat and can be seen through the mouth. These glands help prevent infections from developing in the body. Tonsillitis happens when the tonsils become inflamed or infected by viruses or bacteria. Tonsillitis is a common...

• The Main Causes of Lower Back Pain

  Brief AnatomyThe back is composed of layers of muscles that hold the spinal column in place. It is involved in moving, twisting, and bending, which is why the back is prone to muscle strain.The spinal column is made up of vertebrae that are divided into five regions. The spinal column provides...

• What Is a Yeast Infection of the Skin?

  IntroductionThe most common type of yeast infection in the skin is candidiasis, which is caused by Candida species. There are more than 20 Candida species that exist, and the most common among them is Candida albicans. These fungi may also occasionally cause infections. Below are some of the...

• Recognizing Dehydration Symptoms

  Dehydration happens when your body loses fluids more than the amount that you have taken in, especially water. You can develop dehydration by sweating a lot, by urinating too much, or it can also occur due to an inadequate absorption of water to your body due to certain illnesses. All of these...

• What Are the Signs and Symptoms of Sinusitis?

  Sinusitis occurs because of the infection of the sinuses or cavities of the nasal passage, causing an inflammation and swelling of the tissue lining them. The usual cause is a virus, and the infection persists even when the upper respiratory symptoms have disappeared. Bacteria or fungi can also...