Lifestyle tips

Walk or bike

Be around some greenery (goes well with the previous)

Try to have a little unscheduled time, for whatever comes up or appeals.

Write some things down that are bugging you ... then delete it. Just the act of writing stuff down can help our minds from circling on something.

Hope these help.

I second stretching -- especially if you spend a lot of time sitting. Personally I find that leg stretches get the tension out of my back and shoulders too. I'm not doing anything as fancy as yoga, just a few basic stretches that work for me.