Heat-related illnesses spiked in 2006 following one of their biggest heatwaves in history. Around 140 deaths occurred between July 15th and August 1st. Some of the illnesses that are caused by large amounts of heat are heart attacks, lung disease, strokes, dehydration, diabetes, and acute kidney failure. Increased temperatures are also causing more mental health-related emergency room visits for violence and self-harm. Economically challenged people are a main target for heat-related illnesses because they do not have access to resources to protect themselves from such circumstances as the more affluent residents.