Dr. David Ladd Dorrance M.D.

A recent study published in, The Lancet, shows that daily light exercise of 15 minutes per day can increase the life expectancy by three years and lower the risk of death by 14%. This is especially true in the case of people who are inactive. In this study, the researchers compared inactive people...

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...

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...

What is Raynaud’s disease?Raynaud’s disease, also known as Raynaud’s syndrome or Raynaud’s phenomenon, is a rare blood vessel disorder described by a French physician named Maurice Raynaud in 1862. In this condition, the blood vessels that carry blood from the heart to other parts of the...

Bronchial tubes are the airways through which air travels and reaches the lungs. The inflammation of these bronchial tubes is called bronchitis. The inflammation is more often caused by a viral infection, smoke, dust, or other irritants.Bronchitis may be due to a chest infection, inflammation of...

The mumps is a viral infection of the parotid glands, the saliva producing glands present within the cheek in front of the ears. The infection often results in the swelling of the parotid glands. This contagious infection was contained to a large extent after the introduction of the mumps...