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The sky was a smoky grayish-orange and trees a few hundred yards away had turned to ghostly outlines. This July marked the third summer since I’ve lived in Chicago that the city was covered in a suffocating blanket of smoke from Canadian wildfires, and the air quality was breaking records: as high as 753 on the air quality index one afternoon, earning an “extremely hazardous” warning. Even with all our windows closed and two air purifiers running in different rooms, I was still getting headaches, a sore throat, and burning eyes. And my arthritis pain was worsening. (Lorraine Boissoneault, 8/12)

The White House fact sheet accompanying President Trump’s executive order, which he signed Monday, makes a claim worth examining: that most peer nations sustain high childhood vaccination rates through “public trust and education” rather than mandates. Let’s use trust as the test. (Katrine Wallace, 8/11)

The president is lying about the MMR vaccine. (8/11)

Every drop in participation represents a family with diminished access to healthy food, nutrition counseling and other critical health and social services. (Teon Hayes, 8/11)

The HPV vaccine prevents not only cervical cancer in women, but also multiple cancers in men. (Leana S. Wen, 8/11)