Dr. Guochuan E Tsai M.D., PH.D.

Major depressive disorder (MDD) — also referred to as clinical depression — and Dysthymia are two of the most common types of depression. While there are some less common types too, MDD is a condition that is quite common among people today. In fact, according to the National Institute of...

Generalized Anxiety Disorder (GAD), also known as chronic anxiety neurosis, is a condition characterized by excessive anxiety and worry about common occurrences and everyday life events. It’s quite normal to feel anxious when there is a reason to worry, such as financial instability. However, a...

Anxiety and depression are similar conditions that develop when neurotransmitters, like serotonin, are not as effective. Low serotonin levels, as well as dopamine and epinephrine levels, play an important role in the development of both anxiety and depression. Since both conditions affect the same...

Chronic Obstructive Pulmonary Disease (COPD) is a progressive disease that still does not have a cure. The World Health Organization predicts that COPD will become the fourth leading cause of death worldwide by 2030. The predominant cause for COPD is tobacco smoking. Most symptoms are irreversible,...

Social Anxiety Disorder, also known as social phobia, is a type of anxiety disorder in which a person feels excessively fearful of social situations. A person suffering from this disorder lack social skills and has trouble meeting new people, talking to people, and attending social gatherings. They...

People suffering from attention-deficit hyperactivity disorder (ADHD) encounter several challenges including social, academic or professional difficulties. These issues make it important for ADHD patients to receive definitive treatments that work for them. ADHD is also very common among children....