I started to juggle 10 ten years ago... at the age of 55. I had absolutely no knack for it and felt like my left hand was not coordinated enough to get the hang of it. I discovered that lacrosse balls were great, good weight, bounced when dropped (not in the music room!!!)... etc. Since then, I've juggled pretty much everyday for the last 10 years, between 5-15 minutes a day on average. Now I freestyle juggle in tempo with any track on my playlists. I occasionally wear tie dye when juggling to transport me to those heady days of my first Dead show in the early 70's... lol. It's had a huge impact on my overall balance, which was ok before, but better than it ever has been now. Yes, my balance at 65 is better than as a 17 year old wrestler. Also close range peripheral vision is vastly improved. The only factor that can account for this (I'm a shut in, so eliminating factors is somewhat easier... lol) is juggling. If you're waiting for me to say "A veil was lifted"... I'm not, and I don't want to simply give you a subjective view on the subject. There are a few white papers out there dealing with different aspects of the effects of juggling on the brain. This article is a good summary of the science on the topic. You guys will love the graphs... lol.
The Neuroscience of Juggling: https://tradingatoms.com/2016/03/29/the-neuroscience-of-juggling/
This paper examines the relationship between the practice of juggling and mathematics: https://researchers.ms.unimelb.edu.au/~awmays@unimelb/Mays_Juggling_Thesis.pdf
So... anyone else willing to admit this source of dopamine?
The Neuroscience of Juggling: https://tradingatoms.com/2016/03/29/the-neuroscience-of-juggling/
This paper examines the relationship between the practice of juggling and mathematics: https://researchers.ms.unimelb.edu.au/~awmays@unimelb/Mays_Juggling_Thesis.pdf
So... anyone else willing to admit this source of dopamine?