[RKDinOKC]

Flying R/C planes. The concentration puts you in the zone which tends to clear accumulated stress. Getting into R/C took me off blood pressure medication. Then discovered autocrossing. Being in "the zone" is more intense and the once a month application works wonders.

If you want to see what being in the zone is like watch Driven with Sylvester Stallone. Pay attention when and why he starts humming.