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Recent research suggests that higher levels of light exposure can improve alertness and cognitive performance by influencing the hypothalamus in the brain. This finding supports the potential for light therapy treatments to enhance daily function and sleep quality. The study emphasizes the need for further investigation into how light interacts with brain structures to affect behavior.
With further research, the findings could be used to inform various light therapy treatments to increase an individual’s quality of sleep and affective state, and help them feel more awake and perform tasks better throughout the day. They found that, during both tasks, higher levels of light triggered an increase in activity over the posterior hypothalamus. In contrast, the inferior and anterior hypothalamus followed a seemingly opposite pattern, exhibiting decreased activity under higher levels of light.
“The questions that remain from our study are important to answer, because acting on light stands as a promising easy to implement means to reduce fatigue throughout the day, improving cognitive defects and allowing a restful night’s sleep with minimal cost and side effects,” says Campbell.
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