04/04/2025
The image highlights the link between artificial light at night (ALAN) and chronic diseases. Here's an expanded explanation of its potential health effects:
Artificial Light at Night (ALAN) and Its Impact on Health
In modern society, artificial light exposure at night has increased dramatically due to streetlights, electronic devices, and indoor lighting. Research suggests that this unnatural exposure disrupts the body's circadian rhythm, leading to various health concerns, including:
1. Diabetes (67% Increased Risk)
ALAN disrupts melatonin production, affecting glucose metabolism and insulin sensitivity.
Sleep disturbances caused by light exposure at night may lead to higher blood sugar levels, increasing the risk of Type 2 diabetes.
2. Breast Cancer (30%-50% Increased Risk)
Melatonin, a hormone regulated by darkness, plays a role in suppressing cancer growth.
Nighttime light exposure lowers melatonin levels, potentially promoting the growth of hormone-related cancers like breast cancer.
3. Cerebrovascular Disease (43% Increased Risk)
Disrupting circadian rhythms affects cardiovascular health, increasing the likelihood of strokes and other cerebrovascular diseases.
Sleep disturbances contribute to high blood pressure and inflammation, both of which are risk factors for stroke.
4. Obesity (22% Increased Risk)
Poor sleep quality caused by ALAN affects hunger-regulating hormones, leading to increased appetite and weight gain.
Late-night screen exposure is linked to reduced physical activity and unhealthy eating habits, contributing to obesity.