2023-10-15 10:10:11
New Study Shows the Impact of Light Exposure on Mental Health
A new study conducted by Monash University in Australia reveals that exposure to high levels of light at night can increase the risk of mental illnesses, including anxiety, bipolar disorder, psychosis, and self-harm. The study, which is the largest of its kind in the world, examined data from almost 87,000 individuals from the British biobank and focused on light exposure, sleep patterns, physical activity, and mental health.
The findings, published in the journal “Nature Mental Health,” indicate that individuals exposed to a lot of light at night had a 30% increased risk of depression. On the contrary, those who received significant light exposure during the day experienced a 20% reduction in their risk of depression. The study also suggests that similar results were seen in relation to other psychiatric disorders.
Lead researcher Prof. Sean Cain believes that these findings could have a significant impact on society. He hopes that once people understand the profound influence of light exposure on mental health, they will take simple steps to optimize their overall well-being. The study suggests that maintaining bright light during the day and darkness at night may serve as an effective non-pharmacological method of reducing the risk of serious psychological problems.
According to Prof. Cain, our brains function best in bright light during the day and minimal light at night. However, the modern lifestyle questions this biological preference as individuals spend approximately 90% of their day in closed rooms with artificial lighting. This artificial lighting is often too weak during the day and excessively bright at night compared to natural light and darkness cycles. Such disruption confuses our bodies and may contribute to the onset of mental health issues.
The study highlights the need for individuals to be mindful of their light exposure patterns and take steps to align them with natural cycles. Simple measures such as spending time in natural daylight, reducing exposure to bright artificial light at night, and ensuring appropriate darkness during sleep may play a crucial role in promoting mental well-being.
Further research in this area is warranted to explore the effectiveness of light exposure interventions in mental health prevention and treatment. Nevertheless, the current study emphasizes the potential impact of modifying our light exposure habits to support better mental health outcomes.]
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