Alzheimer's is one of the more frightening conditions that can affect as us we age. However, recent research suggests that there's hope -- finding that it may be possible to regain lost memories.

Using both mental stimulation, and a drug that encourages growth of brain nerve cells, scientists have been able to reverse memory loss in mice. The rodents had a condition similar to Alzheimer's, leading researchers to believe that these methods could also be used in humans that have lost their memory and ability to learn.

While this is exciting news in itself, what's most interesting, is that the mere possibilty of retrieving these memories suggests that they were never "lost" in the first place -- but instead rendered inaccessible by brain damage.

Meaning, that with impoved technology, the disease may not only be preventable -- but also reversable.