1. Keep learning:

A higher level of education is associated with better mental functioning in old age. Experts think that advanced education may help keep memory strong by getting a person into the habit of being mentally active. Challenging your brain with mental exercise is believed to activate processes that help maintain individual brain cells and stimulate communication among them. Many people have jobs that keep them mentally active, but pursuing a hobby, learning a new skill, or volunteering for a project at work that involves a skill you don't usually use can function the same way and help improve memory.

2. Exercise and Eat Well:

While probably a little obvious (and something we've previously noted), I'd bet that the number of people who believe this is common knowledge is very close to the number of people who don't follow that common knowledge. If you're not exercising and eating right simply because you don't know how, well, check out this 15-minute daily workout from 1904 and structure your daily diet like a pyramid. If you're worried about spending too much money to eat healthy, there are plenty of great reader suggestions for eating health on the cheap. Anything you do to keep your brain sharp can be easily thwarted if you don't keep your body healthy. A little physical activity and a smart diet will make it much easier for you to your brain in top shape.

3. Focus:

“The average office worker changes windows [on her computer] 37 times an hour,” Headspace’s head of research Nick Begley says in a meditation tutorial.
According to Begley, when your mind changes gears that rapidly, part of your brain is still engaged in the previous task and you don’t have all of the attention and resources necessary to concentrate on the current task. This slows down productivity and reduces your ability to filter relevant information from irrelevant information.

collected: Internet.