 Human factors engineering literature makes clear that appropriate, well-designed and well-timed information improves decision making and can reduce mental workload. Data from a previous study showed that appropriate, well-designed and well-timed information is not present in many primary care encounters with elderly patients. This puts primary care physicians at risk of higher mental workload and poor decision making which can affect the quality and safety of care delivered to patients. Elderly patients are at particular risk because they are more likely to have more comorbidities, medications, and cognitive impairments. 