Dr. Arnulf H Koeppen M.D.

Introduction Can you imagine having a small bruise but feel like someone has hit you with a sledgehammer? If you can imagine the scenario or may have even felt it at some point in your life, then you must know what it's like to have hyperalgesia.Hyperalgesia is a medical term, which means that the...

As the future becomes the present then the past, scientists, doctors, and patients alike learn more and more about Alzheimer’s disease and how it develops.Today, researchers are learning about the role serotonin plays in the progression of this disease. While the causes of Alzheimer’s are not...

What is sarcoidosis?Sarcoidosis is an inflammatory disease, which is characterized by the growth of granulomas or tiny collections of inflammatory cells in various parts of the body. When the immune system is slowed down and when these numerous clumps form, they tend to interfere with the organ’s...

Parkinson’s disease is commonly known to be a progressive disorder in the nervous system which affects an individual’s movement. A well-known sign of Parkinson’s disease is a tremor usually noticeable in just one hand. Stiffness or slow movement is also caused by the disease. In the US, there...

Erectile dysfunction (ED) is a condition in which a man is unable to get or maintain an erection long enough during sexual activity to satisfy his sexual needs. The condition was referred as impotence before medical research highlighted the underlying causes. Most men encounter erection problems at...

Antidepressants have many uses beyond what their labels may say that they do. Some of the beneficial side effects are well documented and everyone knows about them. But sometimes medications, and not just antidepressants, are prescribed by doctors for off-label usage that is not approved by the FDA....