Our mammalian brains are intricately in tune with natural light rhythms, so it is little surprise that exposure to light is an essential ingredient for us to thrive. The sun has a substantial impact on our moods, productivity, stress levels, and our circadian rhythms. In the home, this can be tended to by embracing lighting environments that promote visual, mental and biological health. Intelligent lighting design, together with techniques for understanding visual balance, user needs and promoting lighting control can reduce circadian phase disruption, improve sleep quality and positively impact mood and productivity. During the daytime hours, it is good to provide as much daylight as possible, without introducing glare.