More than two-thirds of Americans, 69 percent, say they occasionally lose sleep because they're worried about something, according to a Bankrate.com survey out yesterday (August 16th). Relationships cause the most worry that leads to lost sleep, named by 41 percent, followed by financial concerns at 36 percent, and work concerns at 30 percent. Also cited were health worries (28 percent) and politics (14 percent). Financial Psychology Institute assistant professor Brad Klontz suggested in the survey that journaling -- writing down what's worrying you -- can help put your mind at ease and allow you to go to sleep.