Paragraph4__________. A.Itisnotbeneficialforpeopletokeepmentallyactive. B.Inte
Paragraph 4__________.
A.It is not beneficial for people to keep mentally active.
B. Intellectual activity can strengthen people's mental health regardless of their age.
C.Old people should engage in both mental and physical activities.
D.Old people only need to engage in physical activi-ties individually.
E.People with an active mind are more cognitively healthy in their old age.
F.Many experts are putting the theory to work in their own lives.