Philips goLITE BLU Plus energy light, the number-one energy light sold worldwide, is clinically proven to naturally boost your mood and energy and fight winter blues in as little as 15 minutes a day. Treat Winter Blues NaturallyScientific research has shown that the natural rhythms of our bodies are regulated by light. In the winter, our exposure to sunlight is reduced, especially in northern areas. For some individuals, this reduction in sunlight exposure can result in a mood disorder commonly known as the winter blues, which is manifested by reduced energy, low moods, and disrupted sleep patterns.Research has also shown that as little as 15 minutes of light therapy each day can significantly reduce symptoms of the winter blues. The Philips goLITE BLU Plus energy lighteffectively mimics the natural patterns and spectrum of sunlight that our bodies need most, providing a natural way to fight winter blues.