5. Which of the following statements about normal aging is TRUE? With age, short-term memory becomes less efficient. People start to become shorter because of osteoporosis. Old age is a time to grieve one's losses and physical limitations. People age in predictable stages at clearly defined times.

The correct answer is: Old age is a time to grieve one's losses and physical limitations.<br /><br />Explanation: Normal aging involves a gradual decline in physical and cognitive abilities, which can lead to feelings of grief and loss. This is a natural part of the aging process. The other statements are not accurate descriptions of normal aging. Short-term memory may decline with age, but it does not necessarily become less efficient. Osteoporosis can lead to a decrease in height, but this is not a universal experience of aging. People do not age in predictable stages at clearly defined times; aging is a gradual and individualized process.