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The article discusses a study by lead author Zorana Jovanovic Andersen and colleagues on the effects of exposure to air pollution while exercising. The study suggests that long-term exposure to air pollution while exercising did not reduce or outweigh the beneficial health effects of physical activity on mortality rate and heart and lung health.

The article discusses the relationship between incense use for religious and ritual purposes and cardiovascular diseases. The Singapore Chinese Health Study found that long-term incense users had a 12 percent increased risk of cardiovascular mortality, as compared too non-users. Previous studies have shown that volatile organic compounds and particulate matter in incense emissions are similar to those found in cigarette smoke.

The article presents research on breast cancer and study on chemicals, biomarkers and environmental assessment tool that contribute to breast cancer risk. It mentions of a study led by author Ruthann Rudel and colleagues on 102 chemicals linked with mammary tumors in rodent and 91 of 102 chemicals were evidence of carcinogenicity in humans. It informs that epidemiologist Dora Il'yasova reflects on the difficulty while performing biomarker-based exposure assessments.