A new Finnish research shows that sleeplessness may be hereditary, and insomniacs are more likely to die earlier than people with healthy sleep patterns.
The research is the first to link insomnia with mortality risk, Finnish media reported on Monday.
The research was conducted by the Institute of Occupational Health in collaboration with the University of Helsinki and the Finnish National Institute for Health and Welfare.
In a large-scale twin study, the Finnish researchers followed the health status of 12,500 adult twin pairs during the years from 1990 to 2009. Twenty percent of the participants were suffering from sleeplessness symptoms, including difficulty in initiating sleep, nocturnal awakening and non-restorative sleep.
The study found out that compared with unidentical twins, identical twins were more likely to suffer from similar insomnia symptoms. This finding indicates that genetic factors play a role in the formation of insomnia.
Read more at Manila Bulletin