> It is an approach that has proven to be surprisingly effective. According to a study by researchers at the University of Tokyo published in the Journal of Aff

> It is an approach that has proven to be surprisingly effective. According to a study by researchers at the University of Tokyo published in the Journal of Affective Disorders in 2013, data analyzed over a 10-year period shows an 84 percent decline in the number of suicide attempts at stations where blue lights are installed. It’s amazing how subtle nudges can have make such a difference.