Artificial light at night (ALAN) doesn’t just contribute to sky pollution — it may also have damaging effects on the brain. A recent study highlights a potential link between light pollution and an increased risk of Alzheimer’s disease (AD), raising concerns about how modern urban environments could be affecting public health.Alzheimer’s Disease and Its ImpactAccording to the Alzheimer’s Association, Alzheimer’s is the most common form of dementia, accounting for 60–80% of cases. It is a progressive condition, typically impacting individuals over 65, with symptoms such as memory loss and an in…