Table 5.

Identified workplace daylight as well as mixed electric light/daylight associated questions.

Daylight conditions for individuals at workplaces	How much and which qualities of daylight do different individuals/groups receive at their work- and living places (24/7), and how does this relate to their health status?
Daylight exposure as a countermeasure (for shift workers)	Can daylight be a means to counteract the detrimental effects of “light at the wrong time of day”, such as occurs with light in the evening or with (night) shift work? The reason might be that light during the day has a desensitisation effect for light exposure in the evening (see Table 3 and Table 4: light history), and in night shift workers bright light exposure after daytime sleep could help readjustment to the daytime work hours [204], see also recent recommendations of the ‘Working Time Society’ (WTS/ICOH; [113]).
Daylight and visual comfort and non-visual functions at workplaces	Are existing workspace regulations on glare and visual comfort at workplaces sufficient to concomitantly provide good and ‘biologically relevant’ daylight conditions [192]?
View/window	How important is the view out of the window and the environment outside the window [205] for workplace-related variables such as performance and alertness?