Exposure to Bright Lights at Night Increases Alzheimer’s Risk

Research has shown that exposure to bright outdoor lights at night can significantly increase the risk of developing Alzheimer’s disease.

According to an American study, there is a correlation between the prevalence of Alzheimer’s disease and exposure to night light. This correlation is particularly evident in people under the age of 65.

How Night Light Affects the Body

The research team analyzed maps of light pollution such as streetlights, lampposts, and road signs and divided 48 U.S. states into five groups based on the intensity of nighttime light.

Research findings show that exposure to artificial light can disrupt the body’s 24-hour biological rhythm and disrupt sleep. This can lead to cognitive decline.

Prevalence of Alzheimer’s Disease in Younger People

In the elderly, diabetes, hypertension, and stroke have been found to increase the prevalence of Alzheimer’s disease. In particular, in people under 65, the higher the intensity of night light, the greater the correlation with Alzheimer’s disease.

Researchers aren’t sure why young people are more sensitive to nighttime light, but they speculate that it may be due to their lifestyles that frequently expose them to outdoor light.

Tips to Reduce Exposure to Night Light

Using blackout curtains or a sleep mask can help block out harmful light. It is also a good idea to use blue light filters, warm-colored light bulbs, and install dimmers in your home.