Which statement characterizes aging?
a. Slower aging is associated with slower metabolism.
b. Genetics has no effect on aging.
c. Aging cannot be slowed by a healthy lifestyle.
d. Aging is an inevitable, natural process.
e. Aging can be slowed with the use of appropriate supplements.
Question 2
Life expectancy in the U.S. is _____ years.
a. 68
b. 72
c. 75
d. 79
e. 81