New findings hold promise for victims of dementia, Lou Gehrig’s disease.

Professor and presidential adviser Paul McCracken dies at 96; Ann Arbor VC firm fights Silicon Valley; new health system helicopters take flight; students, faculty contribute to Mars mission; U-M doctors oversee cutting-edge trial on ALS; researchers find father’s age linked to risk of autism; U-M program steers kids toward STEM careers; study shows teens prefer information highway to actual highway.