Decoding Life Expectancy: 1850-2011
What was the average global life expectancy in 1850?
- In 1850, the global average life expectancy was around 30 years due to high child mortality rates and a lack of medical advancements.
Which factor greatly improved life expectancy in the late 19th and early 20th century?
- Medical advancements, particularly the introduction of vaccines and antibiotics, significantly increased life expectancy during this period.
What was the average global life expectancy in 1950?
- In 1950, the global average life expectancy was about 48 years.
In which decade did global life expectancy surpass 60 years for the first time?
- Global life expectancy surpassed 60 years for the first time in the 1970s.
What was the average global life expectancy in 2011?
- In 2011, the global average life expectancy was approximately 70 years.
Which region of the world had the lowest life expectancy in 2011?
- Despite improvements, Africa had the lowest average life expectancy in 2011 due to factors like poverty, conflict, and disease.
What was a major cause for the increase in life expectancy during the 20th century?
- The 20th century saw a significant increase in life expectancy due to factors such as better education, decreased infant mortality, and improved nutrition.
Which disease significantly decreased life expectancy in the late 20th century in Africa?
- The HIV/AIDS epidemic significantly impacted life expectancy in Africa in the late 20th century.
In 1850, which gender tended to have a higher life expectancy?
- Even in 1850, women generally had a higher life expectancy than men, a trend that continues today.
Which of these factors is currently considered a threat to increasing life expectancy?
- Climate change poses a significant threat to global health and could impact life expectancy if not addressed.
