Artificial Light at Night Found to Significantly Alter Brain and Body, New Research Shows
A growing body of research now points to a troubling reality for millions worldwide: exposure to artificial light after dark—whether from smartphones, bright hospital lamps, or night shifts—may be fundamentally rewiring the human brain, with ripple effects throughout the body. New findings highlight the health risks tied to Thailand’s own rapidly urbanizing, brightly lit environment, raising concerns for workers and families across the nation.
Rapid urbanization in Thailand has brought the glow of artificial light to every corner, from Bangkok’s neon-lit streets to rural provinces seeing a surge in 24-hour service culture. While most Thais associate bright lighting with modern comfort and safety, scientists are finding that our brains remain hardwired for ancient, natural cycles of light and darkness—a system increasingly disrupted by modern habits. According to recent research by leading neuroscientists at West Virginia University, the effects extend well beyond sleeplessness: chronic exposure to artificial light at night has been shown to disturb our body’s master clock, or circadian rhythm, which in turn can weaken the immune system, increase inflammation, change appetite-regulating hormones, and disrupt mood.