Name a single source of anxiety? Clocks. Clocks, they’re ubiquitous and despite their tautological nature; they always seem to be ticking toward some obvious or obscure deadline. At some point in time your heart rate and the clock synch up; the muscle and the second hand, uniform in their actions. The fibers of your muscles tensing with each 60 second interval that passes, mental stress driving towards a breakdown at the breakneck pace of the hour. Unlike the clock, anxiety doesn’t reset itself to the start of a new interval; bring you back to baseline. No the effects are cumulative, taxing you for days.