First thing you need to know is the brain is basically a muscle. A very complex muscle. If you want to get strong arms, you give them a work-out, right? The brain needs the same. I had severe brain injury when I was just a toddler. The doctors said I would never be able to take care of myself. Boy were they wrong! I always do these exercises to keep my brain as sharp as it can be. AARP offers free games that do the same thing. Give it a try for a month or two and see if it improves. If not, you should probably talk to your doctor. There are many health conditions that change brain function.