SN Online SN Online Share this:EmailFacebookRedditTwitterPrint By Science News August 12, 2011 at 10:16 am SCIENCE & THE PUBLIC BLOG Smoke-exposed kids are more likely to have neuro-behavioral disorders. See “Young minds at risk from secondhand smoke.” BODY & BRAIN At-risk newborns may avoid death and disability by cooling off. See “News in Brief: Body & Brain.” Active neurons trigger changes that speed up signaling. Read “How exercise benefits nerve cells.” ATOM & COSMOS The Milky Way may be in a midlife crisis. Read this story and others in “News in Brief: Atom & Cosmos.”