Exposure to natural light regulates sleep patterns from "summary" of Your Brain On Nature by Eva M. Selhub, MD,Alan C. Logan
Exposure to natural light plays a crucial role in regulating our sleep patterns. Our bodies have an internal clock known as the circadian rhythm, which is influenced by the amount and timing of exposure to light. When we are exposed to natural light during the day, especially in the morning, it helps to align our internal clock with the external day-night cycle. This synchronization is essential for maintaining healthy sleep patterns. Natural light exposure during the day also helps to improve the quality of our sleep at night. The exposure to sunlight triggers the production of serotonin, a neurotransmitter that helps to regulate mood and sleep. Serotonin is converted into melatonin in the evening, which is a hormone that signals to our bodies that it is time to sleep. Without adequate exposure to natural light during the day, this process can be disrupted, leading to difficulties falling asleep and staying asleep at night. On the other hand, exposure to artificial light, especially blue light emitted from electronic devices, can have a negative impact on our sleep patterns. Blue light suppresses the production of melatonin, making it harder for us to fall asleep. In today's modern world, where we are constantly surrounded by artificial light, it is important to be mindful of our exposure to light, especially in the hours leading up to bedtime. In order to optimize our sleep patterns, it is recommended to spend time outdoors during the day, especially in the morning. Opening the curtains or blinds to let natural light into our homes and workplaces can also be beneficial. Additionally, reducing exposure to artificial light, particularly in the evening, can help to signal to our bodies that it is time to wind down and prepare for sleep.- We can better regulate our sleep patterns and improve the overall quality of our sleep. Our bodies are designed to respond to the natural rhythms of light and darkness, and by aligning ourselves with these rhythms, we can support our health and well-being.
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