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by Beatrice Awasthifigures by Tal Scully      Opioid use was a crisis in the United States long before the COVID-19 pandemic—among the 76,000 deaths due to drug overdoses in the United States between April 2019 and April 2020,…

Territorial red squirrels were found to live longer and have more offspring when they had friendly social relationships with their neighbors.

Mahaa M. Ahmed is an Environmental Health MS student at the Harvard T.H. Chan School of Public Health. Jovana Andrejevic is a fifth-year Applied Physics Ph.D. student in the School of Engineering and Applied Sciences at Harvard University. Cover…

by Mahaa Ahmed Dr. Hildrus Poindexter Dr. Hildrus Poindexter, a specialist in tropical diseases, epidemiology, and public health, was the first African American to receive both an MD and PhD. He earned his MD from Harvard Medical School in 1929 and…

As the Arctic gets hotter, its landscape releases more greenhouse gases. According to a new study, the warming Arctic soil's bacteria may diversify and emit even more greenhouse gas than scientists have thought.

Adding wetlands near nitrogen emitting sources could help limit water pollution caused by fertilizer run-off.

Researchers at the Pasteur Institute in Paris identified a molecular pathway that links the gut microbiome to mood disorders.

by Mahaa Ahmedfigures by Jovana Andrejevic Each of the organs in our body has an important role to play. So, what happens when one of them is damaged? For many years, one of the only solutions to an irreparably damaged organ was an organ transplant;…

Jaclyn Long is a first year Ph.D. student in the Immunology Program at Harvard Medical School. Abby Knecht is a second year graduate student in the Molecules Cells and Organisms program at Harvard University where she is studying self versus non-self…

Rebecca Lee Crumpler was born in Delaware in 1831. She was raised by her aunt in Pennsylvania, who often spent time caring for sick neighbors. Inspired by her aunt, Crumpler began working as a nurse in Charlestown, Massachusetts in 1852. During her eight…