Month: November 2025

Health Briefs

New global survey looks at health, well-being

What’s your blood pressure? For most people, this is an easy question, a fundamental measurement taken at every doctor’s visit. Many supermarkets have free stations to check it. Even smart watches can gather this metric anywhere, anytime. Now answer this: What’s your purpose in life? That data, according to a group of researchers at Harvard […]

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  • November 29, 2025
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Health Briefs

Harvard-led research identifies potential test for cannabis impairment

Researchers at Massachusetts General Hospital have found a noninvasive brain imaging procedure to be an objective and reliable way to identify individuals whose performance has been impaired by THC, the psychoactive ingredient in cannabis. The technique uses imaging technology known as functional near-infrared spectroscopy (fNIRS) to measure brain activation patterns that correlate to impairment from […]

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  • November 29, 2025
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Health Briefs

Epstein-Barr virus may be leading cause of multiple sclerosis

Multiple sclerosis, a progressive disease that affects 2.8 million people worldwide and for which there is no definitive cure, is likely caused by infection with the Epstein-Barr virus, according to a study led by Harvard T.H. Chan School of Public Health researchers. Their findings were published today online in Science. “The hypothesis that EBV causes […]

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  • November 29, 2025
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Health Briefs

Olive oil consumption lowers risk of premature death, study suggests

People who consume high amounts of olive oil may lower their risk of premature death overall and from specific causes, including cardiovascular disease, cancer, and neurodegenerative disease, according to a new study led by researchers from Harvard T.H. Chan School of Public Health. The researchers also found that people who consumed olive oil instead of […]

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  • November 29, 2025
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Health Briefs

Exploring history of maternal effects on offspring

Beliefs about which specific maternal behaviors or experiences have lasting effects on gestating offspring have shifted widely over time. In her new book, “The Maternal Imprint: The Contested Science of Maternal-Fetal Effects,” Sarah S. Richardson, professor of the history of science and of studies of women, gender, and sexuality, gives this rich history a clearer […]

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  • November 29, 2025
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Health Briefs

Study holds warning on pandemic drinking

Scientists estimate that a one-year increase in alcohol consumption during the COVID-19 pandemic will result in 8,000 additional deaths from alcohol-related liver disease, 18,700 cases of liver failure, and 1,000 cases of liver cancer by 2040. In the short term, alcohol consumption changes due to COVID-19 are expected to cause 100 additional deaths and 2,800 […]

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  • November 29, 2025
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Health Briefs

Omicron could peak in U.S. fairly soon. Maybe.

Based on the quick rise and precipitous drop of Omicron in South Africa, Harvard experts are cautiously hopeful about a possible decline of the surging COVID variant in the very near future, even as they warn of dramatic case spikes, overloaded hospitals, and slowly rising deaths in the interim. “In South Africa, the Omicron wave […]

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  • November 29, 2025
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Health Briefs

Harvard expert: ‘Schools should not close’

Chicago’s public school system closed this week when the teachers’ union and the city clashed over in-person learning amid a spike in Omicron cases. The Gazette sought reaction from public health expert Joe Allen, an associate professor at the Harvard Chan School and director of the Healthy Buildings program, who believes the downsides of keeping […]

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  • November 29, 2025
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Health Briefs

No Omicron immunity without booster, study finds

An additional “booster” dose of Moderna or Pfizer mRNA-based vaccine is needed to provide immunity against the Omicron variant of SARS-CoV-2, the virus that causes COVID-19, according to a study by researchers at the Ragon Institute of MGH, MIT and Harvard. The results of this study, reported in the journal Cell, indicate that traditional dosing […]

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  • November 29, 2025
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Health Briefs

Early stage lung cancer may be detected from a drop of blood

A diagnostic blood test may provide early detection of lung cancer in asymptomatic patients, according to a new study. Lung cancer, the leading cause of cancer death, is usually diagnosed at a late stage when the survival rate is extremely low. Early stage lung cancer is mostly asymptomatic, and low-dose spiral CT imaging, the current […]

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  • November 29, 2025
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