Dr. Gregory Lynn Keller D.O.

What is trypophobia?Trypophobia is the fear or feeling of disgust when looking at closely packed holes. Individuals who have trypophobia tend to feel very unsettled the moment they look at things with small clusters of holes that are closely held together. Few of examples would be the head of a...

Attention deficit hyperactivity disorder (ADHD) is one of those complex mental disorders that can negatively affect a child’s success in education and the relationship with other children. ADHD symptoms usually vary and are sometimes hard to be recognized since most children will exhibit them at...

Asperger’s syndrome is a developmental disorder that affects a person’s ability to communicate, interact, and socialize with others. This is a type of autism spectrum disorder, and many of the symptoms of this disorder are similar to symptoms found in autism. Generally, Asperger's is not as...

A panic attack is the most well-known symptom of a panic disorder. Oftentimes, panic attacks come unexpectedly and are usually accompanied by various frightening physical sensations, including hyperventilation or shortness of breath. They are sudden periods of intense fear and anxiety. Panic attacks...

Post-traumatic stress disorder, or PTSD, is an anxiety disorder that a person develops after witnessing a very stressful and terrifying event. In most cases, the person must have faced a life-threatening event or an incident in which serious injury was involved. Events that trigger fear,...

Seasonal Affective Disorder or SAD is a type of depression that comes and goes with the seasons. It starts during winter, usually stemming from a low amount of natural sunlight and is often lifted in the months of summer or spring. The symptoms often can begin in autumn as the days start getting...