The combination of wildfire smoke and extreme heat poses significant health risks, particularly for vulnerable groups such as older adults, children, outdoor workers, and individuals with pre-existing conditions like asthma, COPD, and heart disease. Poor air quality, driven by high levels of PM2.5 particulate matter, can exacerbate respiratory and cardiovascular issues, while heat-related illnesses such as dehydration, heat exhaustion, and heat stroke are also concerns. Michigan’s ongoing cyclosporiasis outbreak may further increase risks for those already dehydrated or ill. Experts warn that extremely poor air quality could impact everyone, not just high-risk groups.