Whether in the harshest parts of Africa or the richest parts of California, longevity in humans is increasing.
Also, the gap between male and female life expectancy is narrowing, the researchers at Spain’s Universidad de Alcalá report in the journal PLoS One.
The authors split world populations into five clusters and found each area demonstrated longer life expectancies and fewer disparities between genders over the last 30 years. They also said their data predicts that these trends will continue into the next decade.
But although safer and safer conditions for blue-collar jobs have meant that men are dying less on the job, the experts believe they will never average the lifespans of women due to conditions caused by their Y chromosome, which seems to be associated with increased risk of lethal, non-communicable diseases.
In terms of life expectancy, researchers found that most countries in the world have seen improvements in longevity over the past two centuries according to data from across all continents between 1990 and 2000. Measures used were life expectancy at birth and eight other mortality indicators from the United Nations Populations Division records relating to 194 countries.
They then lumped these countries together to create five separate clusters based on their mortality and longevity characteristics between 1990 and 2010.
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