Assessing the latest U.S. dietary guidelines

Harvard Chan School professor Eric Rimm looks at the updated U.S. dietary guidelines — what’s changed and what should change.

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health-medicine harvard-th-chan-school-of-public-health dietary-guidelines plant-based-diet eric-rimm meat 20202025-us-dietary-guidelines

Does aspirin lower colorectal cancer risk? Not after age 70

A new study finds that while regular aspirin use has clear benefits in reducing colorectal cancer incidence among middle-aged adults, the benefits stop after age 70.

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health-medicine mgh colorectal-cancer aspirin

Laser-steering microrobot offers surgeons high-speed precision

Robotic engineers from Harvard’s Wyss Institute and John A. Paulson School for Engineering and Applied Science have developed a laser-steering microrobot in a miniaturized 6 by 16 millimeter package that can be integrated with existing endoscopic tools.

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science-technology harvard-universitys-wyss-institute-for-biologically-inspired-engineering robert-wood endoscopic-tools john-a-paulson-school-for-engineering-and-applied-science laser-steering-microrobot minimally-invasive-surgeries transnasal-operations

Study finds link between gut microbes and Type 2 diabetes

A large-scale international study uses metagenomics and blood analysis to uncover gut microbes associated with the risks for common illnesses such as diabetes, obesity, and heart disease.

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diet obesity type-2-diabetes health-medicine plant-based-diet gut-microbes andrew-t-chan personalized-responses-to-dietary-composition-trial-1 predict-1

Coronavirus variant dampens prospects for return to normal

Will the British variant’s transmissibility upset summer plans?

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covid-19 coronavirus pandemic health-medicine alvin-powell marc-lipsitch barry-bloom sars-cov-2 british-variant transmissibility

Math model suggests optimal coronavirus treatment strategies

A biology-based mathematical model indicates why COVID-19 outcomes vary widely and how therapy can be tailored to match the needs of specific patient groups.

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covid-19 coronavirus pandemic health-medicine brigham-and-womens-hospital massachusetts-general-hospital mgh rakesh-k-jain university-of-cyprus

Study finds guidelines to reduce heartburn symptoms

A study of diet has found that by adhering to specific guidelines, women can reduce more than one-third of incidence of gastroesophageal reflux disease symptoms.

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Astrochemist brings search for extraterrestrial life to Harvard

Clara Sousa-Silva, whose expertise in phosphine as a biosignature gas was key to a recent analysis that may have detected life in the clouds of Venus, has moved to the Center for Astrophysics | Harvard & Smithsonian for the final two years of her fellowship. She discusses the finding and the broader topic of the search for life on other planets.

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science-technology spectroscopy alvin-powell center-for-astrophysics-harvard-smithsonian earth extraterrestrial-life venus exobiology clara-sousa-silva david-charbonneau hitran phosphine

Daniel Lieberman busts exercising myths

In his new book, “Exercised: Why Something We Never Evolved to Do Is Healthy and Rewarding,” Daniel Lieberman explores exercising myths.

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exercise health-medicine daniel-e-lieberman exercised-why-something-we-never-evolved-to-do-is-healthy-and-rewarding

Ancient DNA shines light on Caribbean history, prehistory

New answers have emerged from the largest genome-wide study to date of ancient human DNA in the Americas.

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science-technology dna archaic-age caribbean-people ceramic-age