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This entertaining video clip introduces the viewer to Ray and Elva, two centenarians who exemplify recent research studies aimed at uncovering the secrets of longevity.

Because centenarians tend to have family members who are also long-lived, scientists have examined their DNA in hopes of identifying genes that may contribute to their longevity. These linkage analysis studies may lead to the development of life-extending medications. Large-scale studies of centenarians also point to the importance of factors in the psychological and social domains of health. Ray thrives on his curiosity as a scientist, while Elva enjoys painting and weekly outings with her friends.

After you've watched the video, click the link below to answer questions about what you've learned.

1. What did the two centenarians featured in the video have in common?

A. They were both unable to participate in meaningful work and activities due to age related health issues.

B. They both had engaging interests and happy-go-lucky attitudes.

C. They were both able to live in their own homes only because they had family living with them.

D. They both were the first in their family to live this long, outliving some family members by 30 to 40 years.

2. What was one outcome of Perl and Kenkle’s research study of centenarians?

A. They isolated a longevity gene, which accounts for multiple people in families living past the age of 100.

B. They developed a medication to replicate the biology found in the centenarians.

C. They isolated a section of chromosome that may be responsible for longevity.

D. They determined that DNA is solely responsible for living to 100 and beyond.

3. What do the scientists mean when they state that centenarians can provide us with a paradigm shift for aging?

A. If we mimic the biology found in centenarians, we may live significantly longer than average..

B. If we begin taking medications for longevity at the age of 50 to 60, we may live significantly longer than average.

C. If we take care of ourselves by exercising, avoiding excess weight, and not smoking, we may live to 100 and beyond.

D. If we don’t have family members who have lived to be centenarians, we are unlikely to live to 100.

Video: 100 Years Old and Counting: Psychological and Biological Factors