The Loss of Light and Its Impact on Daily Life
As the seasons change, there’s a phenomenon we often underestimate: the reduction of daylight hours. What is today a 7:30 pm sunset will, in just a few weeks, turn into complete darkness at the same time. Within two months, the light that fills our afternoons will vanish long before our day is truly over. This transition is not just an aesthetic detail of the landscape; it has a profound effect on both our bodies and our minds. The biological clock and light: Our bodies are guided by an internal system called the circadian rhythm, which regulates sleep, energy, appetite, and mood. Sunlight is the main signal that synchronizes this inner clock. When darkness arrives earlier, the brain interprets it as the end of the day and begins to release melatonin, the sleep hormone, making us feel tired even when our schedule still demands activity. Routine under pressure: In summer, finishing work while there’s still daylight allows time for exercise, socializing, or simply enjoying the evening. But in fall and winter, the lack of light disrupts these routines. The workday ends, yet the surroundings are already dark, often leading to sedentarism, isolation, and a premature sense that the day is “over.” Emotional and physical impact: The reduction of natural light also affects the production of serotonin, a neurotransmitter linked to motivation and well-being. This is why many people experience seasonal affective disorder (SAD): apathy, sadness, and low energy that coincide with the darkest months of the year. In addition, reduced sunlight exposure lowers the synthesis of vitamin D, which is essential for bone health, immune function, and hormonal balance. How to adapt to earlier darkness: While we cannot stop the seasons from changing, we can adjust our routines: - Maximize natural light: walk or work near a window in the morning. - Use proper artificial light: full-spectrum lamps can help compensate for the lack of sunlight. - Plan physical activity earlier: moving the body before nightfall sustains energy and mood. - Create transition rituals: use darkness as a cue for rest, but not as an excuse to shut down social or personal life.