[kitsunesoba]

I would say that modern stressors, while each not as stressful as many of those present early in humanity's history, are both far more numerous and omnipresent. Many are arguably less actionable, too — there are many things one can do to help reduce chances of food hardship or being eaten by a tiger but almost nothing we can do to e.g. radically change our economical standing or influence national or global politics. That's not to mention things like the pressures of expectations from family and friends, competition from peers, etc…

All of these stressors amalgamate into a chronic "fuzz stress" that has no form and no distinguishable source that constantly sits in the back of the minds of the collective public and is very difficult to expunge because doing that would require addressing all of the individual contributors, which is for all practical purposes impossible without sweeping societal change.