The role of light in shaping our daily lives is often underestimated, yet the quality of light we're exposed to can have a profound impact on our well-being. Warm light, characterised by its soft, yellow-orange hue, is particularly beneficial during the evening hours, and this isn't just a matter of preference; it’s rooted in our biology. Our natural human circadian rhythm, which is the internal process that regulates our sleep-wake cycle, is sensitive to light cues. Throughout history, our ancestors were accustomed to the warm, dim light of fire and sunset during the evening, signalling the brain that it's time to wind down and prepare for rest. In contrast, the cooler, blueish lights we often encounter from electronic devices can stimulate the brain, imitating the brightness of day and potentially disrupting our sleep patterns. Thus, embracing warm light during the night can not only create a cozy ambiance but can also align with our body's innate rhythm, promoting relaxation and preparing us for a rejuvenating sleep.
This is why we like to surround ourselves with the soft glow of candles in the evening, or ensure our home's lighting, especially in our bedrooms, emits a warm hue. It's also a compelling reason to put aside phones and computers before drifting off to sleep.