Perelman School of Medicine

Penn Researchers Unwind the Mysteries of the Cellular Clock

Human existence is basically circadian. Most of us wake in the morning, sleep in the evening, and eat in between. Body temperature, metabolism, and hormone levels all fluctuate throughout the day, and it is increasingly clear that disruption of those cycles can lead to metabolic disease.

Karen Kreeger



In the News


Associated Press

The Pope has now been in the hospital for 3 weeks battling double pneumonia. How serious is that?

Jeffrey Millstein of the Perelman School of Medicine says that a ventilator would be the next step if Pope Francis wasn’t able to breathe well enough with the non-invasive support he’s received so far.

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Philadelphia Inquirer

When your medicine comes with a long list of side effects

In an opinion essay, Jeffrey Millstein of the Perelman School of Medicine says that doctors and medical-care teams can help manage and monitor medication side effects.

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WHYY (Philadelphia)

Philadelphians push the city to do more to plant and protect trees

Perelman School of Medicine student Gyan Moorthy says that an exemption to tree planting requirements near certain affordable housing developments in Philadelphia denies the benefits of trees to an already vulnerable population.

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The New York Times

Women with postpartum depression experienced brain changes during pregnancy, study finds

Sheila Shanmugan of the Perelman School of Medicine says that there are profound brain changes during pregnancy and in depression circuitry specifically.

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Irish News

Seven unusual sleep hacks to help you drift off peacefully—we speak to a sleep expert about how to get a good night’s rest

A study from the Perelman School of Medicine found that participants who practiced paradoxical intention experienced significantly reduced sleep anxiety.

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