Being a, um, mature quilter might mean your most innovative work is ahead of you!
Check out: http://us.cnn.com/2012/06/19/health/enayati-aging-brain-innovation/index.html?sr=sharebar_facebook
What's more, crafting is good for you, and this has got to include quilting: http://www.cnn.com/2014/03/25/health/brain-crafting-benefits/.
It's all good! News item of the future: Quilting will be proven to be better for you than going to the gym! (If it can happen to wine, it can happen to quilting: Check out: http://www.latintimes.com/drinking-wine-better-going-gym-according-scientists-yes-261496).
This is especialy true if you keep your sewing machine in the basement and your ironing board in the attic. After just a few log cabin blocks, you'll be cardiovascularly and intellectually enhanced, exhausted, and certainly deserve a nice glass of wine!