Today, nine-year-old Zion Harvey can throw a baseball over home plate. He can write in his journal, prepare himself lunch, and manage zippers on his clothes. For most of his life, however, these and many other ordinary actions were impossible for this little boy.

Abbey Anderson ・September 6, 2016

Ciliopathies are diseases that affect the cilia, sensory organelles that most mammalian cells possess and which play a critical role in many biological functions. One such disease is Senior Løken Syndrome, a rare condition that can involve both a severe kidney disease and the blinding disease Leber congenital amaurosis, or LCA.

Katherine Unger Baillie ・August 29, 2016

A fear of pain causes many people with dental phobias to avoid or delay needed treatment. In some cases, the injection of a numbing agent can be the most painful part of the visit.

Katherine Unger Baillie ・August 26, 2016

Researchers from the University of Pennsylvania and University of Groningen have discovered a piece in the puzzle of how sleep deprivation negatively affects memory.

Katherine Unger Baillie ・August 22, 2016

Dyskeratosis congenita, or DC, is a rare, inherited disease for which there are limited treatment options and no cure. Typically diagnosed in childhood, the disorder causes stem cells to fail, leading to significant problems including bone marrow failure, lung fibrosis, dyskeratosis of the skin and intestinal atrophy and inflammation.

Katherine Unger Baillie ・August 18, 2016

On Bonnie’s Bus, parked in a lot at Camp Caesar in Webster Springs, W. Va., Chana Schaffer is in a bit of a bind.

Michele W. Berger ・August 15, 2016

Public libraries serve communities in myriad ways, providing places where people gather to read, learn a new language, access the internet, pick up tax forms, or apply for jobs.

Katherine Unger Baillie ・August 5, 2016

PHILADELPHIA - Mayor Jim Kenney has appointed Farzana Rashid Hossain, MD, an assistant professor of clinical medicine and a gastroenterologist at the Perelman School of Medicine at the Un

August 4, 2016

Try this thought experiment from the world of philosophy. Imagine a train moving quickly down a track. On its current route, call it Path A, five people stand fixed in place; in another direction, Path B, one immoveable individual waits. A single flip of a switch, at which you happen to be standing, shifts the train’s direction from Path A to B, saving five people but dooming one.

Michele W. Berger ・August 4, 2016

Two faculty members from the University of Pennsylvania have been selected for membership in the American Philosophical Society. They are Ronald Fairman and Rogers Smith.

Jill DiSanto, Abbey Anderson ・August 2, 2016