In Japan, the introduction of blue lights at train stations has resulted in a remarkable decrease in suicide attempts, with reports indicating a reduction of 74 to 84 percent. This initiative, which began in the late 2000s, was particularly focused on high-risk areas along train platforms in the Tokyo region. The calming association of blue light is thought to help individuals return to a relaxed state more quickly after stress. However, further analysis of the data reveals that the actual impact might be less significant than initially reported, with some estimates suggesting a decrease of only about 14 percent. Additionally, it is suggested that brighter lighting could enhance awareness, contributing to the reduction in incidents. Despite the uncertainty surrounding the effectiveness of blue lighting alone, this strategy has gained traction internationally, with installations in various countries as part of broader safety measures.