With tragic news this morning of a cyclist fatality, in this edition of The Conversation Hour, we look at what measures need to be put in place to improve the safety of cyclists on our roads.Also in this edition, is it problematic for celebrities to put their name to weight loss products? What is the cumulative impact of grief on staff working in aged care? Plus,  we speak with one of the first female boundary umpires to umpire the men's AFL.