Some major life events of older adulthood include all of the following except:
a. retirement
b. health problems
c. changes in relationships
d. midlife crisis

Older Adulthood refers to the time when humans typically retire and start to have health problems, such as physical and mental problems (dementia). It comes a long after midlife crisis, which occurs earlies, such as at 40 years of age (d is the correct answer ).