Causes of Memory Loss

When it comes to the brain, research has found that the term “use it or lose it” is more than just something that refers to physical exercise.
Studies have shown for example, that college-educated people have more well-developed nerve endings in the area of the brain dealing with word understanding than those without a higher education.
In a study conducted by Australian research Dr Elizabeth Coulson, she showed that brain cells that are not utilized die earlier than those that are used. If the cell is not 'stimulated', it eventually withers away and dies. In another well-known study known as the MacArthur study, researchers found that elderly people with the healthiest brains had certain things in common. These included, remaining active mentally by using their brains to do things like crossword puzzles, reading, and playing games such as bridge. They also were physically active, walking instead of taking the car and taking the steps instead of the elevator.
Another study in the New England Journal of Medicine found that physically active seniors have a 63 percent lower risk for developing Alzheimer's disease. Just by making the brain concentrate or stay on task can have a positive effect. A study in the journal Nature found that young adults who learned th juggle showed an increase in gray matter of their brains—but when they stopped to juggle, the increase shrunk back to where it was before they learned to juggle.
The bottom line in all the research is that mental exercise does indeed work—just like physical exercise.