Dementia and Delirium are two somewhat broad biological phenomenon that are biological causes of mental illness. These interfere with biological processes with the brain. If we wish to be more specific, Cancers, Alzheimer and Parkinson's Disease can affect the brain by pressing on important aspects (Brain Cancer's) and/or cause progressive degeneration (Alzheimer and Parkinson's)
References can provide information on personal characteristics. The background check can be considered as a preemptive measure to ensure the integrity of the organization and the safety of employees. Individuals may not be appropriate for certain positions due to some aspect of their history.
