Extra Credit: Our pick of stories from around the web that bridge the gap between news and scholarship. Brought to you each Tuesday from the editors of JSTOR Daily.

Why adolescents act so dumb (The New Yorker)
by Elizabeth Kolbert
Researchers can point to evolution and brain development to explain why teenagers take far more risks than adults. Some of the differences can also be spotted in mice—particularly if you make them live in the rodent equivalent of a frat house.

Eat less, live longer? (Hippo Reads)
by Katherine Wu
Some studies show that creatures fed a severely calorie-restricted diet live longer. But don’t throw away that sandwich just yet. The evidence here is complicated, and the conclusions for real-life humans aren’t clear.

Varieties of Murder (Medical Daily)
by Ali Venosa
What makes someone kill? Researchers interviewed 153 murderers and found that those who killed a domestic partner had very different psychological profiles from other killers.

When computers diagnose illness (The Atlantic)
by Adrienne LaFrance
In one experiment, a computer program was able to pick out young people who would later develop schizophrenia better than human doctors. The study has interesting implications both for diagnosing mental illness and for the potential uses of emerging technologies.

Can academics explain ISIS? (The Washington Post)
by Costantino Pischedda
Some commentators see the rise of ISIS as a mystery, but the group’s methods fall in line with the way research has shown insurgent groups tend to use violence, guerrilla tactics, and ethnic polarization.

Have you seen a story online that does a good job of bridging the gap between the news and scholarship? Or something that seems particularly well-researched? Let us know and we may include it in next week’s roundup. Email us at jstordaily_submissions (at) jstor (dot) org.