Apparently, and I'm no expert, besides learning other languages or musical instruments, one of the best things for a young mind to learn is - juggling. Not only is it hand-eye coordination but it also develops skills like timing, physics, prediction, adaptation, etc, etc, etc. I don't recall exactly but I think it's good for any age, including the elderly and infirm minds. From what I've heard, it's best to start with slow-falling tissues or handkerchiefs before you advance to beanbags, cats, or chainsaws.
I don't know how to juggle, I have no stake in juggling stocks, nor do people call me a clown (to my face), and yet here I am, promoting juggling. I do, however, know how to ride a unicycle (not well) - but that's a whole other story. I regret starting this comment because now, with this length, it looks like I'm a juggle head. I promise I'm not. At least, not that I know of. I just saw a documentary on the mind a year or few ago.
Yes, juggling is really good for memory and learning. In fact it is one of the methods I use in my classes and that people can use at home practicing for exams, lectures, etc.
When I teach juggling in class, I start with lightweight scarves and work my way to beanbag or balls.
I have been a juggler since I was a kid.
I even read that the Devil does not accept jugglers in hell, so apparently the benefits are numerous.