Health

Looking at data from 15 million patients, researchers found that 39 percent had gained weight.

The delta variant’s increased infectiousness, coupled with remaining pools of unvaccinated people and those whose immunity has waned, are enough to drive a winter COVID-19 surge even in highly vaccinated parts of the country, a Harvard infectious diseases expert said.

William Hanage predicts a likely decline in U.S. COVID cases, depending on vaccination rates, control tactics, and the absence of variants.

Alcohol use in older adults has been trending upward over the years, particularly among women.

The Pfizer-BioNTech vaccine has been shown to be safe in school-age children, a potentially key development in the fight to bring the coronavirus pandemic under control.

Massachusetts General Hospital study links healthy plant-based foods with lower risks of getting of COVID-19 and of having severe disease after infection.

Marc Lipsitch, an epidemiologist and director of the Harvard T.H. Chan School of Public Health’s Center for Communicable Disease Dynamics, says COVID vaccines for children should not be rushed and a return to in-person learning can still be navigated.

James Sturm used his skills as a comic book artist, and the help of several Harvard undergrads, to create a comic book that breaks down the health care industry.

A new health and economic model clearly shows why it’s imperative that food manufacturers reduce the amount of added sugar in their products.

In his new book, Michael Pollan provides a contextual backdrop to how we think about and use drugs.

Despite its ability to transmit more easily and puncture vaccine defenses, the delta variant is no superbug. It is vulnerable to masking, distancing, and other non-pharmaceutical interventions, lessons from delta outbreaks overseas show.

A catalyzing gift will establish The Ivan and Francesca Berkowitz Family Living Laboratory Collaboration at Harvard Medical School and Clalit Research Institute, supporting precision medicine efforts through data science, clinical research, and training.

A new study found a potential direct link between exposure to parental smoking during childhood and increased risk of seropositive rheumatoid arthritis later in life.

Consuming higher amounts of vitamin D — mainly from dietary sources — may help protect against developing young-onset colorectal cancer or precancerous colon polyps, according to the first study to show such an association.

A surge in COVID-19–related deaths in the U.S. could exceed the peak seen in early 2021, according to experts.

Researchers have found strong evidence of an association between exposure to fine particulate air pollution from 2020 wildfires in the U.S. and increased risk of COVID-19 cases and deaths in three western states, for up to four weeks after the exposure.

Immunologist Yonatan Grad explains what has been learned from COVID-19 and how to apply the lessons moving forward.

New study suggests practical strategies to help children through a pandemic.

A new study found that COVID-19 messages tailored to Black audiences and presented by physicians of color did not enhance the effectiveness for minority participants.

Researchers say policymakers should weigh decarceration for inmates at low risk of reoffending to combat COVID inside prisons.

Researchers have now created a simple, inexpensive diagnostic test that allows users to test themselves for multiple variants of the SARS-CoV-2 virus at home, using just a sample of their saliva.

Harvard Associate Professor of Epidemiology William Hanage provides tips on how to deal with the delta variant of COVID-19.

Researchers are looking more closely at the impact of stress on the body, taking it down to the cellular and molecular level.

Conversations with Harvard experts shed light on the rise of delta, an unwelcome twist in transmission, the power of vaccination, and more.

The Gazette spoke with Harvard psychologist Michael Hollander about the toll anxiety can take on performance and what must change to ensure athletes get the help they need.

A new study demonstrates how changing parents’ health behavior and how clinicians deliver care to mothers and infants decreases excess weight gain in infants.

Robert Blendon examined the divide among Americans over vaccine mandates.

Changes in gut microbiome in longitudinal study of infants precede onset of celiac disease.

New research in humans and mice identifies a particular signaling molecule that can help modify inflammation and the immune system to protect against Alzheimer’s disease.

Coronavirus ultimately not over, says Harvard Chan School’s William Hanage.