Light exposure refers to the amount of natural or artificial light that reaches our eyes and skin. It plays a crucial role in regulating our body's internal clock, known as the circadian rhythm. This rhythm helps control sleep patterns, mood, and overall health. Getting the right amount of light exposure can improve our well-being. For instance, spending time outdoors during the day can boost vitamin D levels and enhance our mood. However, too much exposure to bright screens, especially at night, can disrupt sleep and lead to fatigue. Balancing light exposure is essential for a healthy lifestyle.