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  • Dr. Eric Carlsen

Shedding Light on Blue Light

woman at computer gaming. It is dark and computer is emitting blue light.

In today's digital age, we're constantly surrounded by screens—whether it's our smartphones, tablets, computers, or TVs. While these devices have undoubtedly transformed the way we live and work, they also come with a downside: exposure to blue light.

Blue light is a high-energy, short-wavelength light that is emitted by digital screens and LED lights. While exposure to natural sunlight during the day can be beneficial for our health, prolonged exposure to artificial blue light, especially in the evening, can have several negative effects on our bodies.

One of the most well-known effects of blue light exposure is its impact on sleep. Blue light suppresses the production of melatonin, the hormone that regulates our sleep-wake cycle. This can disrupt our circadian rhythm and make it more difficult to fall asleep and stay asleep at night. Poor sleep quality has been linked to a range of health issues, including increased stress, weakened immune function, and heightened risk of chronic diseases.

Moreover, excessive blue light exposure can also strain our eyes and contribute to digital eye strain, also known as computer vision syndrome. Symptoms of digital eye strain include dry eyes, headaches, blurred vision, and neck and shoulder pain. Over time, prolonged exposure to blue light may even increase the risk of age-related macular degeneration, a leading cause of vision loss.

But it's not just our sleep and eye health that are affected by blue light exposure. Research suggests that blue light may also have negative effects on our mood and cognitive function, potentially contributing to symptoms of anxiety, depression, and cognitive decline.

As your chiropractor, I'm committed to helping you achieve optimal health and well-being. While we can't completely avoid blue light exposure in today's digital world, there are steps you can take to minimize its impact on your body. Consider reducing screen time in the evening, using blue light filters on your devices, and incorporating relaxation techniques into your bedtime routine to promote better sleep.

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