The study discusses the impact of light on mental health in the school environment, with an emphasis on students’ cognitive abilities. In the conducted experiment, Spectrasol procognitive lights were used. The initial results in December 2022 showed that students in classrooms with long-term installed full-spectrum procognitive lighting achieved better results in all used research methods. The most significant difference was demonstrated in a test focused on reaction time. In the group with regular lighting, only about 30% of students completed this test, while in the group with procognitive lights, it was up to 83% of students.
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