Juggle. It's about pattern, space and structure, so it tends to suit technically minded people. At the same time, you really can't think of anything else when

Juggle. It's about pattern, space and structure, so it tends to suit technically minded people. At the same time, you really can't think of anything else when you're learning a new pattern or trick. You need to get to a zen(ish) state, not thinking, not feeling, not sensing, but being the structure. Well, at some level. It's also surprisingly good for the muscles and breathing, and it's been proven to make your brain grow in both grey matter (the cells) and white matter (the connections). It's also said to improve co-ordination, peripheral vision, reactions, and balance.