Regular cognitive changes as you age are entirely normal. This may include mild cognitive impairment, which is quite common in humans after midlife.Usually, this "dulling of the mind" starts around middle age. Since the average person lives to about 80 years old, if you're 40, you are middle age. Even if you are nowhere near 40 right now, this age comes sooner than you think because time passes very fast while you're living it.If you're someone who's looking to retain a sharp memory no matter your age, this eBook will help you make it happen.