Regularly engaging in mentally stimulating activities, such as word puzzles or math problems, helps keep the brain young, according to Harvard Medical School. Activities that stimulate the brain and involve manual dexterity, such as painting and drawing, can also help keep the brain young.
Other ways to keep the brain young include engaging in regular physical exercise, eating a healthy diet and avoiding the use of tobacco, says Harvard Medical School. Forming strong social ties and being active in the community can also help the brain stay young. Mentally stimulating activities are thought to stimulate the brain to develop new connections between neurons, and possibly to even generate new neurons, providing a functional reserve against loss of neurons over time.