Study: Too much stress may shorten life expectancy
By: Team Ifairer | Posted: 17-03-2023
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Researchers have found that life expectancy is influenced not only by
traditional lifestyle-related risk factors, but also by factors related
to a person's quality of life, such as heavy stress. The study,
published in the journal BMJ Open, was based on data collected from men
and women aged 25 to 74 in the Finnish National FINRISK Study 1987-2007
through questionnaires and measurements. The rate of mortality was
followed until the end of 2014.
For the findings, the researchers
calculated the effects of multiple risk factors, including
lifestyle-related ones, to the life expectancy of men and women.
"Before, life expectancy has usually been assessed based on only a few
sociodemographic background factor groups, such as age, sex, and
education. In this study, we wanted to assess the impact of several
different factors to a person's life expectancy, so we could compare
their effects," said study researcher Tommi Harkanen from National
Institute for Health and Welfare in Finland.
The researchers
calculated the life expectancies by changing the values of each risk
factor at a time and keeping the values of other factors constant. Only
the BMI, blood pressure, and cholesterol levels were allowed to be
changed when the values related to lifestyle factors were changed. They
found that the biggest causes for shortened life expectancy for
30-year-old men are smoking and diabetes. Smoking takes 6.6 years and
diabetes 6.5 years out of their life expectancy.Being under heavy stress
shortens their life expectancy by 2.8 years, the study said.