Heat illness cases are on the rise this week as Columbus bakes under a sweltering heat wave and high humidity.

By Tuesday night — following the fourth hottest day on record in Boston — Mass General’s emergency department was slammed.

As temperatures rise, the risk of heat-related complications increases, prompting emergency medicine providers to emphasize the importance of staying safe.

Northwell’s Mather Hospital is preparing to open the doors to its all-new Frey Family Emergency Department — a $78 million, ...