“Our eyes, ears, and other sensory organs constantly send information to the brain. Our brains use this information to construct our experiences and memories.
“The better we absorb this information, the better we can respond to it and store it, so that we can remember it and use it later. That’s what mental sharpness is all about— having strong brain function that supports a variety of cognitive skills.
“Our brains successfully absorb a lot of information. But for most of us—including almost everyone over age 40—our brains could do better. Over time, the brain changes in ways that impede its ability to take in information as quickly, accurately, and clearly as it once did. These changes have widespread effects on thinking, focus, memory and much more.”
Continued in article How Posit Science Brain Fitness Programs Work.