A British survey conducted by BUPA insurance indicates that people are worrying more than they did five years ago.
Health was at the top of the list of worries, particularly heart disease and cancer. Fears of bird flu and terrorist attacks caused less worry, according to the 1,800-person survey.
Stress-related medical problems are also becoming more common, including anxiety-caused insomnia. More than a third of those surveyed reported losing sleep.
The survey showed that over two-thirds of the population was chronically worried, and more than one in five people were considering getting medication for it.