Daily light exposure among psychiatric inpatients

1. The light environment is a key element in the restoration and maintenance of health. 2. People need exposure to bright light (greater than 2,000 lux) to synchronize their circadian rhythms. 3. The affective state of people is related to their light exposure. 4. Bright light among psychiatric inpatients is low. Interventions to increase light exposure in therapeutic environments and individual care plans are recommended.