The best way to improve memory is by practicing physical exercise, challenging your brain on a daily basis, meditating, sleeping eight hours a night, reducing stress, fostering personal relationships, and eating right.
It is possible to improve your memory, assuming you're willing to dedicate time and effort to the process.
You can sharpen your memory by eating the right foods, sleeping eight hours a night, learning a new skill, and practising memory exercises, among other things.
Omega-3 fatty acids are reportedly good for memory, as are Vitamin E, Vitamin B, and various antioxidants.