The beginning of this heat wave has already brought some challenges as fire crews in the North and East Bays have been busy chasing flames.

BART police say a 74-year-old woman was pushed into an oncoming BART train last night at San Francisco’s Powell Street Station.

Whether a road worker laying asphalt or cooks toiling away in a hot kitchen, this heat wave offers unique challenges. They include dehydration, heat stroke, exhaustion.