Findings

What do systematic reviews say?

3 questions · 3 findings · 1 reviews · Work · Headline outcomes only

No studies found 0 · 0%GRADE not reported 0 · 0%Very low 0 · 0%Low 3 · 100%Moderate 0 · 0%High 0 · 0%

Alertness · daytime workers

Morning bright light showed no clear difference in alertness compared with afternoon bright light (low certainty).

1 finding from 1 review

Workplace lighting for improving alertness and mood in daytime workers 2018 · Cochrane Headline outcomes only
MD 7
1 study · 30 participants
Low

Mood · daytime workers

Morning bright light showed no clear difference in mood compared with afternoon bright light (low certainty).

1 finding from 1 review

Workplace lighting for improving alertness and mood in daytime workers 2018 · Cochrane Headline outcomes only
RR 1.6 [0.81, 3.2]
1 study · 30 participants
Low

Frequency of adverse events ( · daytime workers

Morning bright light showed no clear difference in adverse events (frequency) compared with afternoon bright light (low certainty).

1 finding from 1 review

Workplace lighting for improving alertness and mood in daytime workers 2018 · Cochrane Headline outcomes only
RR 0.53 [0.26, 1.07]
1 study · 30 participants
Low