The results of stricter screenings of drivers aged 75 or older in Japan showed that about 30,000 of them may be suffering dementia, the National Police Agency said Thursday.The 30,000 drivers represent about 3 percent of the 1.1 million elderly road-goers who have undergone cognitive function tests since March 12, when tougher screenings were introduced under a revised road traffic law.With Japan, the world's most aged country, seeing a rise in serious traffic accidents involving elderly drivers, the revised law requires people aged 75 or older to see a doctor if a cognitive function test t…READ FULL ARTICLE