Japanese children had the second-worst rated mental well-being among 38 developed and emerging countries due to poor life satisfaction and the high frequency of suicide, a UNICEF report said Thursday.While Japanese children ranked first in physical health and live in relatively well-off economic circumstances, instances of bullying in schools as well as difficult relationships with family members leads to a lack of psychological well-being, the U.N. Children's Fund found.Only children in New Zealand ranked worse than Japan in terms of their mental well-being.The report, titled "Worlds of In…READ FULL ARTICLE