The image is a screenshot of an abstract from a scientific paper. The abstract discusses the relationship between circadian rhythm disturbance and the risk of developing various psychiatric disorders, including bipolar disorder, PTSD, and COVID-19. It mentions that circadian rhythm disturbances can have a significant impact on the circadian clock, which is the primary input for the circadian system. The abstract also highlights the importance of light exposure in maintaining normal circadian rhythms and the potential risks associated with insufficient or excessive light exposure.