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Question Numbers: 46-50
Read the following passage and answer the questions that follow:
Over the past 160 years, life expectancy in the industrialized world has increased at a steady rate of a quarter of a year per year. This change was initially driven by the spread of things we often take for granted today: clean water, sewerage and waste disposal, good nutrition, vaccines and antibiotics. By the late 1970s these innovations had reached the point of diminishing returns, yet at about the same time new technologies began to yield real benefits in the fight against the most lethal threats that remained: cancer, heart disease, and stroke. Even counting the most least developed countries, the average person worldwide today can expect to live to be about 70 years old, up from a life expectancy of about 35 years at the beginning of the twentieth century.
Although it is certainly impossible to predict the future, many progressive thinkers have begun to discuss the possibility that at some point in the next twenty years a baby will be born who will live to the today unimaginable age of one hundred and forty years and beyond. Children will see a world in which there is no expected "natural" age limit for survival. Barring random accidents or deliberate murder, men and women just two generations from us will probably live forever. In principle, all that is needed is for technology to continue to advance faster than the individual.
However, such optimism must be balanced with the social and physical limitations of life. Today's developing technologies will undoubtedly be increasingly expensive at the upper end of the age spectrum and widen the gap between rich and poor. As life expectancy increases, diseases that were previously rare will become more widespread. Alzheimer's disease, a growing threat to today's seniors, was virtually unknown before the 1950s, largely because, statistically speaking, most people died before symptoms developed. Was.
Read the following passage and answer the questions that follow:
Over the past 160 years, life expectancy in the industrialized world has increased at a steady rate of a quarter of a year per year. This change was initially driven by the spread of things we often take for granted today: clean water, sewerage and waste disposal, good nutrition, vaccines and antibiotics. By the late 1970s these innovations had reached the point of diminishing returns, yet at about the same time new technologies began to yield real benefits in the fight against the most lethal threats that remained: cancer, heart disease, and stroke. Even counting the most least developed countries, the average person worldwide today can expect to live to be about 70 years old, up from a life expectancy of about 35 years at the beginning of the twentieth century.
Although it is certainly impossible to predict the future, many progressive thinkers have begun to discuss the possibility that at some point in the next twenty years a baby will be born who will live to the today unimaginable age of one hundred and forty years and beyond. Children will see a world in which there is no expected "natural" age limit for survival. Barring random accidents or deliberate murder, men and women just two generations from us will probably live forever. In principle, all that is needed is for technology to continue to advance faster than the individual.
However, such optimism must be balanced with the social and physical limitations of life. Today's developing technologies will undoubtedly be increasingly expensive at the upper end of the age spectrum and widen the gap between rich and poor. As life expectancy increases, diseases that were previously rare will become more widespread. Alzheimer's disease, a growing threat to today's seniors, was virtually unknown before the 1950s, largely because, statistically speaking, most people died before symptoms developed. Was.
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