For most of the 17th century, the number of slaves in the American colonies is quite small. Indentured servants and the settlers themselves handle most of the colonies' labor needs. The transition to slave labor in the Chesapeake is the result of ec...
For years, scientific research on aging focused only on its negative aspects. But improved medical care and extensive public health programs have dramatically increased the average human lifespan. Aging and dying, like many aspects of our health, ar...
Since 1900, average life expectancy in the United States has nearly doubled, going from 47 years to about 78 ears for males and 82 years for females. In most cases, the quality of life has increased along with the quantity, but growing older still...
In the last hundred years, the average life expectancy in the United States has increased by nearly sixty percent. This has been called by some the "longevity revolution."
The United States is in the bottom quartile of industrialized countries in standard statistical and public health measures. The healthcare emphasis in the U.S. generally improves quality of life but not life expectancy. Infant mortality tends to be ...
In measuring the health of a group of people two statistics are most often cited: life expectancy and infant mortality. Life expectancy is a prediction of how long a person is likely to live. The life span of an average American in 1900 was just ove...