As time goes by and we get older, our brain naturally loses some of its "computing" abilities. Cognifit, an Israeli-developed brain-training application and website, has created what might be termed a mental gym that can actually train your brain.

A new study from Tel Aviv University may have found a way to reverse brain damage, by using a specialized oxygen chamber. The new method of treatment is said to restore a significant amount of neurological function in brain tissue thought to be chronically damaged — even years after initial injury.