Dr. Mark Winthrop Crandall MD

IntroductionHallucinations are sensations that people perceive as real, but in reality, are only created by their mind. A person's five senses are often affected. Examples are hearing voices without anyone around or seeing images that are not real. Such symptoms are may due to mental illnesses, drug...

What is Nymphomania?Nymphomania is a mental and emotional condition in women characterized by a sudden increase or extreme frequency of sexual urges or activity. To differentiate this from promiscuity and lust, the condition features a preoccupation with sex-related thoughts, feelings, or even...

The scientific name of St. John’s wort is Hypericum perforatum, which is a powerful medicinal herb that has anti-inflammatory properties. This herb has been long been used due to its health benefits, especially in relieving depression. Ancient Greek physicians believed that this herb possessed a...

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,...

What is akathisia?Akathisia is a feeling of anxiety or restlessness. Its symptoms tend to overlap with the symptoms of other physical and psychological disorders. The diagnosis depends on a very subjective feeling of restlessness. Hence, recognizing akathisia can be somewhat tricky. Movement...

In psychiatry, hallucinations are defined as a perception experienced in the absence of an external stimulus to the corresponding sense organ. In simple terms, hallucinations are when people see, hear, feel, smell, or taste things that really don’t exist outside of their minds. For a...