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Hockney and freedom
2026/06/15 00:00

Commentary

Environmental Smoke: Harm to Adults Who Don't Smoke
Health Effect Risk Increase Annual U.S. Deaths
Coronary heart disease25–30% increased risk~34,000 premature deaths/year
Stroke20–30% increased risk
Lung cancer</td>20–30% increased risk>7,300 deaths/year
  • Even brief exposure can damage the lining of blood vessels, make blood platelets stickier, and set the cancer process in motion.[1]
  • Since 1964, approximately 2.5 million non-smokers in the U.S. have died from health problems caused by secondhand smoke exposure.[1]
  • The claim that environmental tobacco smoke "has not been shown to be harmful" is flatly contradicted by an overwhelming body of scientific evidence spanning decades. Every major public health authority — the CDC, WHO, Surgeon General, NIOSH, and IARC — has concluded that secondhand smoke causes serious disease and death in non-smokers.
  • A 2024 Nature Medicine Burden of Proof meta-analysis[2] found consistent evidence supporting harmful associations between secondhand smoke exposure and nine health outcomes, including:
    • Ischemic heart disease (~8% increased risk)
    • Stroke (~5% increased risk)
    • Type 2 diabetes (~1% increased risk)
    • Lung cancer (~1% increased risk)
  • Some additional conclusions from authorities:
    • NIOSH (CDC): "Evidence is now clear that the health risk from inhaling tobacco smoke is not limited to the smoker, but also includes those who inhale ETS"[3]
    • IARC (WHO) classified secondhand smoke as a Group 1 carcinogen (carcinogenic to humans) in 2004.
    • A systematic review in Critical Reviews in Environmental Science and Technology[4] noted that tobacco smoke contains more than 4,000 chemicals, 44 of which are classified as human carcinogens.

References