Well, I'm confident you could find science that demonstrates positive physiological effects of prayer, too.

Sitting quietly and relaxing or focusing the mind is nice, which is why I do sitting meditation frequently. I just don't want to do it in an unrelated group setting, along with a dharma talk that I can almost guarantee ventures into some kind of metaphysical or spiritual territory.

Probably the "Hoffice" thing just isn't my cup of tea. The suggested break activities also include giving each other massages, doing "goofy" workouts, and some eye contact exercise that seems kind of creepy.