Final answer:
Certain mental activities can benefit from the maintenance of cognitive skills.
Step-by-step explanation:
The concept referred to here is cognitive skills. Cognitive skills are mental abilities that involve processes such as thinking, perceiving, analyzing, and remembering. Certain mental activities, such as playing games, reading, and completing crossword puzzles, can help maintain and improve cognitive skills. Research has shown that engaging in mentally stimulating activities can help delay the onset of cognitive decline and reduce the risk of conditions like mild cognitive impairment and dementia.