Most people are about as happy as their self confidence will allow them to be.

Dave was a confirmed serotonin junkie. Any day of the year, he chose a good book, a hot cupper, and air-conditioning over jeopardy to life and limb.

Medications used to treat psychiatric disorders are commonly referred to as psychotropic drugs. These drugs are commonly described by their major clinical application, for example, antidepressants, antipsychotics, mood stabilizers, anxiolytics, hypnotics, cognitive enhancers, and stimulants. A problem with this approach is that these drugs have multiple indicators. For example, selective serotonin reuptake inhibitors (SSRls) are both antidepressants and anxiolytics, and the serotonin-dopamine antagonists (SDAs) are both anxiolytics and mood stabilizers.