People who suffer from insomnia may have an increased risk of heart failure, according to the largest study ever to investigate the link. Those who experience all three major symptoms -- trouble falling asleep, problems staying asleep, and not waking up feeling refreshed in the morning -- were more than three times more likely to develop heart failure compared with those with no insomnia symptoms, according to a study of 54,279 people for an average of more than 11 years. The study, funded by the Nord- Troendelag Health Trust in Norway, was published today in the European Heart Journal.
