Barrier-Free World
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At the beginning of the 20th century, older adults and people with disabilities were true
minorities.  The few people who survived birth and early childhood with a disability, likely
did so in an institution.  In addition, the average human life span was only 47 years, and
people who received spinal cord injuries had only a 10 percent chance of survival.  At
the end of World War II only one person in 500 made it to age 100, in 1997 there were
214,000 (more than the total number of centenarians during the history of mankind
combined).

Today, the average life span in North America has increased to 76 years of age.  Better
living conditions, significant improvements to medicine, vaccinations and sanitation, and
the virtual elimination of many diseases that were deadly at the turn of the twentieth
century have all contributed to people living longer, healthier lives.  Even with these
lifestyle and medical improvements, the older people are, the more likely they are to
experience an increase in physical impairments and disabilities.

To be continued. . .
Aging
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