Dr. Dean L Fiergang MD

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...

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...

Green tea is known to reduce cholesterol levels, burn fat, prevent diabetes, prevent stroke, and control dementia. It is also known to have the potential to fight cancer and heart disease. Most of these beliefs are quite intriguing as there are very limited studies to prove the benefits. Katherine...

Vertigo is a fairly common condition that causes an individual to feel as if their head is spinning and he or she becomes dizzy. It is usually temporary, only for a few seconds to minutes, occurring only when you make sudden head movements, but sometimes it can be so severe that it begins to...

Heat exhaustion is a condition that results from dehydration due to exposure to very high temperatures. Heat exhaustion is categorized into two types based on the underlying changes in the body – exhaustion due to depletion of water and exhaustion due to depletion of salt. When the condition...

Alzheimer’s is a devastating disease that does a lot more than takes away a person's memory. It also takes away their independence and identity. It's common to hear more about this disease when loved ones start forgetting their keys, or misplacing items. However, there is another, subtle sign of...