Tobacco companies remain embedded in influential U.S. business groups worldwide, giving the industry a discreet and powerful channel to weaken regulation and undermine public health, a new study finds.

A newly declassified Lawrence Livermore National Laboratory assessment from May 2020 concluded that all of the conditions necessary for an accidental release of a laboratory-modified coronavirus were present at the Wuhan Institute of Virology in China before the COVID-19 pandemic erupted.

Newly released intelligence records show that as recently as January 2025, the U.S. intelligence community planned to create an independent panel of outside experts to study how the COVID-19 pandemic began.

Women with higher blood levels of per- and polyfluoroalkyl substances — known as PFAS or "forever chemicals" — may be more likely to have multiple sclerosis (MS), according to a new study.

Forty years of studies find higher cancer risks among children exposed during pregnancy and early life to pesticides used on farms, lawns, gardens, and pets.

Growing evidence suggests chlorpyrifos may damage the brain, hormones, liver, gut microbiome, muscles, reproductive organs, and bones.

A growing body of scientific evidence raises concerns about the human health risks of neonicotinoid exposure, including neurotoxicity and reproductive toxicity.

CIA analysts concluded multiple times that COVID-19 most likely originated from a laboratory, but intelligence leaders repeatedly altered those findings in official summaries later offered to the public, a CIA whistleblower testified Wednesday before the Senate Homeland Security and Government Affairs Committee.

E-cigarettes can quickly lodge toxic metals deep into the lungs, where they may damage tissue, according to new research that provides detailed evidence about risks of vaping.

Switching from conventional personal care products to nontoxic alternatives can rapidly and significantly reduce exposure to harmful chemicals.