Health A-Z


Clinical Definition Claustrophobia is a persistent, irrational fear of enclosed spaces. The phobia, a type of anxiety disorder, triggers reactions and anxiety symptoms such as dizziness, nausea and tachycardia, which results in avoidance of situations or objects that trigger it. Desensitization, medication and cognitive therapy can help. In Our Own Words Claustrophobia is fear of

Cluster Headache

Clinical Definition Cluster headaches appear to be associated with activity in the hypothalamus, the brain region that houses the circadian clock and the trigeminal nerve. Though not nearly as common as tension headaches or migraines, cluster headache pain can last anywhere from 15 minutes to three hours or so. The trigeminal nerve triggers the ocular

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