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Recent news from The Johns Hopkins University

This section contains regularly updated highlights of the news from around The Johns Hopkins University. Links to the complete news reports from the nine schools, the Applied Physics Laboratory and other centers and institutes are to the left, as are links to help news media contact the Johns Hopkins communications offices.

 

Twitter Posts May Shine a Fresh Light on Mental Illness Trends

Johns Hopkins computers scientists, who have already used Twitter posts to track flu cases, say their techniques also show promise as a tool to gather important information about some common mental illnesses. By reviewing tweets from users who publicly mentioned their diagnosis and by looking for language cues linked to certain disorders, the researchers say, they’ve been able to quickly and inexpensively collect new data on post-traumatic stress disorder, depression, bipolar disorder and seasonal affective disorder.

Exposure to Light at Night May Cause Depression, Learning Issues, JHU Biologist Says

For most of history, humans rose with the sun and slept when it set. Enter Thomas Edison, and with a flick of a switch, night became day, enabling us to work, play and post cat and kid photos on Facebook into the wee hours. However, according to a new study led by Johns Hopkins biologist Samer Hattar, this typical 21st- century scenario comes at a serious cost: When people routinely burn the midnight oil, they risk suffering depression and learning issues, and not only because of lack of sleep. The culprit could also be exposure to bright light at night from lamps, computers and even iPads.