Experts say the best way to keep your brain sharp over time is to keep learning. Jimmy Fallon and Jane Fonda want to help you with that.
On Thursday's Tonight Show, Fallon and Fonda listed off several "true facts" -- nonsensical declarations that are completely false and, occasionally, don't even take the form of a sentence. Did you know, for instance, that Mother's Day was founded by Paul Mothers? True fact.