Answer the following statements true (T) or false (F)

1. Over the 20th century, both life expectancy and life span increased.
2. Hayflick likens aging to the ticking on of a cheap watch that eventually results in its failure
3. According to Hayflick, scientists have made significant progress during the last century in uncovering the fundamental cause of aging.
4. Like other biomedical goals, discovering the processes that cause aging or determine our life span would have a strictly positive value.
5. According to Fries and Crapo, average life expectancy has increased while life span has remained the same.


1. False
2. True
3. False
4. False
5. True

Social Work & Human Services

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