Forgetting is Harder for Older Brains

It may sound weird at first, but older people actually retain memories for much longer. This is due to an abundance of a protein that resists the breaking of synapses between nervous cells. A study on mice supported this because they found a large amount of the protein NR2A on the neurons of the older mice and this has been known to increase in abundance with age. The study also showed that when something "slips your mind," it was actually intentional because there is also a protein that dissolves synapses.

NOS themes

-supported by evidence
-several scientists working together

http://www.scientificamerican.com/article.cfm?id=forgetting-is-harder-for-older-brains