These sources collectively discuss the profound impact of lighting and environmental design on human health and safety, particularly for older adults and patients. They highlight how Evidence-Based Design in healthcare can improve patient outcomes by incorporating natural light and views, while also addressing the negative effects of poor design like noise and lack of natural light on stress and healing. Several sources emphasize the critical role of appropriate illumination in maintaining circadian rhythms, which are often disrupted in older individuals due to age-related eye changes and insufficient light exposure, leading to issues like insomnia, depression, and increased fall risk. Finally, the texts explore practical applications, such as using pathway lighting to enhance safety during nighttime navigati ...