Articles on Public health

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Stigma and prejudice make it difficult for Black gay men to access PrEP. Willie B. Thomas/DigitalVision via Getty Images

Half of Black gay men will be diagnosed with HIV, despite highly effective preventive treatments − why?

PrEP can reduce the risk of sexually transmitted HIV infection by 99%. Discrimination and distrust are two barriers Black gay men face in accessing this lifesaving treatment.
The presidential debate on Sept. 10, 2024, did not add much context to what the two candidates would do on health care beyond their own records. Visual China Group/Getty Images

Health care under Harris versus Trump: A public health historian sizes up their records

Harris and Trump have starkly contrasting records on health care. This analysis examines their differing approaches to Medicare, the ACA, drug pricing and other public health efforts.
Fine particulate matter from wildfires can cause long-term health harms. Gary Hershorn/Getty Images

How researchers measure wildfire smoke exposure doesn’t capture long‑term health effects − and hides racial disparities

Which is riskier for your health: a few days of very bad PM₂.₅ exposure or many more days of slightly bad exposure? Researchers developed new metrics to provide better answers.
Kearny Generating Station, a former coal-fired baseload power plant, now a gas-fired peaker, on the Hackensack River in New Jersey. Jim Henderson/Wikipedia

Utilities rely on dirty ‘peaker’ plants when power demand surges, but there are alternatives

As renewables account for a growing share of electricity supply, fossil fuel plants are increasingly used to balance fluctuations in renewable generation – emitting health-threatening pollutants.
Noah Lyles, of the United States, lies on the track after competing in the men’s 200-metre final at the 2024 Summer Olympics on Aug. 8, 2024, in Saint-Denis, France. Lyles said he tested positive for COVID two days before he finished third in the 200-metre final. (AP Photo/Petr David Josek)

Why has COVID been so much worse this summer? The health belief model has the answer

Summer 2024 saw a big surge of COVID-19 cases. While COVID-19 is not the emergency it once was, it’s still a health threat, and we’d be wise to reduce our risk of getting it.
Advocates and supporters gather in Victoria, B.C., in April 2022 to mark the anniversary of the 2016 declaration of a public health emergency in the province due to the significant increase in opioid-related overdoses. THE CANADIAN PRESS/Chad Hipolito

Early prevention programs for children could help end the opioid crisis

Primary prevention is a crucial but underused component of a comprehensive public health approach to ending the opioid crisis — starting with children.

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