Is Old Age Memory Decline Reversible?

This article is about haw neuregenesis that is the nerve cell reproduction goes down with age … it's known that with old age there's a decrease in short- term memory,"
So they made experiments based on learning out of fear, such as associating a sound or light flash with a shock to a paw.with mice to see haw they remember stuff depending the age , so thy put the mice in a learning room to see haw they learn.
my opinion!!
I think that this article was really good i don't really like to do experiments with animals but this can really help old peopole and known haw the reack with thifirent kind of learning .