It has been known for decades that mental health plays an important role in our quality of life, but a new study suggests it is also an important factor in our quantity of life.
The new study, led by researchers at the University of Toronto, followed 12,424 Canadians over the age of 18 from the mid-1990s until 2011. They discovered that the people who were in poor mental health at the beginning of the study died, on average, 4.7 months earlier than the people who were in excellent mental health.
Participants were first interviewed in 1994 and 1995 (Wave 1) and were followed until 2010 and 2011 (Wave 9).
Mortality data was ascertained by the Canadian Vital Statistics-Death Database in Wave 9. By the end of the study period, 2,317 of the participants had died, according to the researchers.
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