How we can increase human memory power?

Mental exercise is the key to boost memory power. Shortage of physical exercise makes the body inactive and lethargic, and absence of psychological exercise does the same thing to the mind. Train the mind frequently by repeating to ourself anything we need to remember as quickly as we learn it. This is very useful especially when remembering phone numbers and dates. Repetition is a simple system on how to improve memory power, but it works even for long term memory.

I think we can increase human memrory power by some technique, like imagination.

But i want more  technique to increse memory.