CONCLUSION
Physicians and nurses who man- age psychotropic medications should have a solid historical understanding of their development since the mid- 1950s and how their clinical use has broadened and increased dramatically over time. Nurses also should under- stand the concepts of neurotroph neuroprotection, which are a benefit of regular exercise and are the "silent" benefits of psychotropic drugs beyond their relief of psychiat- ric symptoms. A common criticism is that these drugs are overprescribed, with oversold benefits and underem phasized harms (Howland, 2015). Because of their neurotrophic and neuroprotective effects, however, the widespread use of psychotropic drugs provides a plausible explanation for declining rates of dementia observed during the past three decades. This association warrants further study