10 biggest corporate deals of 2015

Companies made more than $4.7 trillion in deals so far this year, surpassing 2007 as the top year for deals, according to Dealogic. The most recent deal, a tie-up of Dow Chemical and DuPont announced Friday, adds more than $60 billion to the total.

Bullying can leave lasting mental scars

Young people with behavioral problems, such as aggressive or antisocial behavior, appear to have noticeable differences in certain areas of their brains, new research suggests. Young people with behavioral problems, such as aggressive or antisocial behavior, appear to...