Dr. Marissa Lyttle M.D.

Recommended Articles

• What Is a Normal Heart Rate?

  What is heart rate?The heart rate is the number of heartbeats that occur per minute. The normal heart rate depends from person-to-person. As people get older, the heart rate changes and pulse regularity may change, which can signify heart problems or other medical conditions. Your heart rate may...

• Anemia Symptoms

  What is anemia?Anemia occurs when there are low levels of red blood cells (RBCs) in the body. Red blood cells are the ones that carry oxygen all over the body. So when a person's RBC count is lower than normal, it means that there is not enough oxygen in the blood, causing symptoms of anemia, such...

• Creating a Better Body Image

  Dieting, scale obsession, and unhappiness with our body begin at a young age. We are bombarded with perfect, airbrushed models on TV, in print and on billboards. We see the latest and greatest gadgets to lose weight, get a thin waist, make our hair thicker or silkier, keep our skin young and soft...

• Croup in Adults

  Croup is a very common respiratory infection in children, but it can also occur in adults. It can occur at any point and is quite infectious since the virus is often being dispersed through the air, which causes the infection to spread to others. Although rare, croup can also be caused by bacterial...

• These Conditions Can Cause Dyspnea

  OverviewDyspnea is the clinical term for shortness of breath or breathlessness experienced by both healthy individuals and patients with respiratory or cardiovascular diseases. It can also be a temporary condition that quickly resolves on its own or a symptom of a more serious health condition. A...

• How Can I Prevent Cold Sores?

  Cold sores are groups of small fluid-filled blisters that form on and around the lips. These blisters, also known as fever blisters, are sore and reddish in color. As the blister breaks open, the fluid oozes out and forms a crust. In most cases, cold sores resolve within few weeks.Fever blisters are...