Forecasting global life expectancy and morbidity

Forecasting life expectancy, years of life lost, and all-cause and cause-specific mortality for 250 causes of death: reference and alternative scenarios for 2016–40 for 195 countries and territories

Key messages from The Lancet article:

Global life expectancy was projected to increase by 4·4 years (95% UI 2·2–6·4) for men and 4·4 years (2·1–6·4) for women by 2040, to 74·3 years (72·1–76·4) and 79·7 years (77·4–81·8), respectively.

Compared with the past, global progress in extending life expectancy was forecasted to be slower from 2016–40. This trend resulted from forecasts of slowed advances on key drivers such as SDI; worsening of several risks, particularly high BMI; and stagnated gains on cardiovascular diseases, which was a major factor in historical improvements in life expectancy.