Penn Medicine Study Finds Marijuana Use May Impair Sleep Quality

A new study from researchers at the Perelman School of Medicine at the University of Pennsylvania suggests that marijuana use may be associated with impaired sleep quality, especially in people who have been using the drug since their teenage years.

Jessica Mikulski

Penn Medicine Research Reveals Suicides Are Far More Likely to Occur After Midnight

A new study by researchers at Penn Medicine is the first to reveal that suicides are far more likely to occur between midnight and 4 a.m. than during the daytime or evening. The research abstract was published recently in an online supplement of the journal Sleep and will be presented at SLEEP 2014, the 28th annual meeting of the Associated Professional Sleep Societies LLC.

Jessica Mikulski

New Penn-Designed Gel Allows for Targeted Therapy After Heart Attack

Combatting the tissue degrading enzymes that cause lasting damage following a heart attack is tricky. Each patient responds to a heart attack differently and damage can vary from one part of the heart muscle to another, but existing treatments can’t be fine-tuned to deal with this variation. 

Jessica Mikulski, Evan Lerner

Penn Medicine Researchers Show How Lost Sleep Leads to Lost Neurons

Most people appreciate that not getting enough sleep impairs cognitive performance. For the chronically sleep-deprived such as shift workers, students, or truckers, a common strategy is simply to catch up on missed slumber on the weekends. According to common wisdom, catch up sleep repays one's "sleep debt," with no lasting effects.

Jessica Mikulski