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London, UNITED KINGDOM: Science Museum employee Lauren Gildersleve demonstrates the new Light Lounge, an ambient white space containing four specially designed light boxes where visitors can relax and have light therapy, in the Science Museum's Dana Centre in London, 10 January, 2006. Light therapy is used to help combat SAD (Seasonal Affective Disorder) which affects 1 in 50 people during the darker months of the year. AFP PHOTO / JOHN D MCHUGH (Photo credit should read JOHN D MCHUGH/AFP/Getty Images)