The University of Minnesota says nearly half of overweight adolescents already play organized sports. Researchers behind the study say junk food is the culprit.

More than 120 recently deployed military families are part of a groundbreaking U of M study called ADAPT. It aims to make the transition back home after military deployment easier. Researchers observe parents and their children to try and understand deployment stress. At the same time, researchers test parenting techniques on the families.

Einstein's theory of special relativity says nothing can move faster than the speed of light, but early research suggests that some subatomic particles actually do. Now scientists are trying to confirm that, and one of the few places on Earth where they can conduct such research is in a high-energy physics lab half a mile underground in the Soudan mine up north.

Reports of the demise of rural Minnesota seem to be greatly exaggerated. While it's true that college-aged residents are leaving rural counties, research by a U of M sociologist finds people in their 30s and 40s and migrating into rural areas. And bringing educational degrees and earning power with them.

The condition known by the acronym SCAD can lead to heart attacks that are often misdiagnosed. While most heart attacks involve plaque or other buildup in an artery, SCAD involves a torn artery in which a flap blocks blood flow. It seems to occur most often in young women, although more research is needed.