A new survey says U.S. co-workers' annoying habits are the number one source of stress in the workplace. The top complaint was talking too loudly on the phone, followed by constant whining about work, the Boston Globe reported. Nearly 60 percent of respondents to an online survey by job-search Web site www.truejobs.com said their co-workers' annoying habits negatively affected their work relationships, and 40 percent said it led them to seek a different job. When a co-worker gets on your last nerve, it can create a physiological reaction, such as rising blood pressure, that increases stress and decreases concentration, psychologist...