Dr. John David Heefner M.D.

ADHD, or attention deficit disorder, is a commonly undiagnosed mental disorder in adults. According to data provided by The American Psychiatric Association, about 5% of children in the America have ADHD; however, other studies indicate rates as high as 11%. According to other sources, the childhood...

The causes of autism spectrum disorders (ASDs) are still unclear. Even though research shows that genetic factors are predominate, they are not the one and only cause. In fact, it’s much more likely that there are multiple causes rather than just one.1. Genetic FactorsThere are multiple studies...

What is Autism?Autism spectrum disorder (ASD, or simply ‘autism’, is a condition characterized by communication challenges, social-interaction difficulties, sensory sensitivities, and restricted or repetitive behavior. Restricted and repetitive behaviors are the most common of these symptoms of...

Definition:Insomnia is a condition in which someone finds it hard to fall asleep or stay asleep for an amount of time that enables them to feel well-rested the following day. This condition is common among the elderly and is said to affect one in three people on average. Signs and Symptoms:...

Clinical depression is associated with social, occupational, and physical impairments. People commonly perceive that depression is a trivial condition that is not entirely genuine. However, depression is a real illness with real and debilitating symptoms, and should not be perceived as anything...

Attention deficit hyperactivity disorder (ADHD) is a neurological/behavioral disorder that affects a person's ability to control one's behavior. The real cause of attention deficit hyperactivity disorder (ADHD) is unknown, although numerous factors are thought to be responsible. GeneticsPeople...