she had only been at advertising firm dentsu for eight months.om heart attacks to strokes to depression, karoshi cases have been reported for decades. but these tweets left clear evidence — forcing companies to address the issue. her employer, dentsu, has been reforming the way its employees work, including a new rule to turn off the office lights at 10:00pm. the japanese government has also passed a new law to set a legal cap of 100 hours per month on overtime work. but critics say it doesn't go far enough to tackle the fundamental issues. they want harsher penalties for companies and managers who violate the law. dentsu was fined less than $5,000 for causing her karoshi and none of her managers were prosecuted. that report from our singapore —based team, such a serious issue and what it means for some people around the world. trevor is back with us, thank you for all your comments. jessica in tokyo says firmly, as a foreign single mum i need to work crazy hours. this is to support my half japanese daughter. the only balance i get is a national