The key may be microRNAs, small non-coding RNAs that help regulate gene expression, according to a study from Penn Medicine and the Children’s Hospital of Philadelphia.

About 25 percent of Americans experience acute insomnia each year, but about 75 percent of these individuals recover without developing persistent poor sleep or chronic insomnia.

Four members of the University of Pennsylvania faculty have been named Fellows of the American Association for the Advancement of Science. Election as an AAAS Fellow is an honor bestowed upon members of AAAS, the world’s largest general scientific society, by their peers.

James C.

John T. Farrar of the Perelman School of Medicine, Elliot V.

A new app may offer new insights for millions of Americans diagnosed with a concussion each year. Patients are usually advised to rest for the first several days after sustaining a concussion, based on what is known about the metabolic cascade that happens shortly after an injury.

Colorectal cancer is the second highest cause of cancer death in the United States, expected to claim the lives of an estimated 49,190 people in 2016.

Penn's Innovative Community Health Worker (CHW) model, shown to reduce admissions and lead to better health outcomes for hospitalized patients, can now be used in outpatient settings, according to a study from researchers at the Perelman School of Medicine in the journalPopulation Health Management.

State laws that require drivers who’ve been convicted of drunk driving to pass a breathalyzer-type test before starting their cars saved an estimated 915 lives between 2004 and 2013, according to a study published in the American Journal of Public Health by researchers at the Perelman School of Medicine at th

Street lighting, illuminated walk/don’t walk signs, painted crosswalks, public transportation, community parks, and maintained vacant lots are associated with significant decreased likelihood of homicide among youth in a city neighborhood, according to a study published today in JAMA Pediatrics