Gains in life expectancy over the last 125 years are due primarily to

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The significant gains in life expectancy over the last 125 years are mainly due to the reduced deaths of young children and mothers in childbirth. The advancements in healthcare and medicine, improved sanitation, awareness of hygiene and preventative healthcare, and access to safe drinking water have also contributed to the increase in life expectancy. Exercise and a healthy lifestyle may contribute to a longer lifespan, but they are not the primary reason for the gains in life expectancy. Genetic engineering has not advanced enough to delay the aging process significantly. Lower high-cholesterol food ingestion may contribute to lower rates of heart disease, but it has not been a significant contributor to the increase in life expectancy.

Gains in Life Expectancy Over the Last 125 Years Are