Give lab rats oxytocin and, according to that meme, they get better at talking about their feelings and sing like Joan Baez.

But if you get chronically, psychosocially stressed, you're going to compromise your health. So, essentially, we've evolved to be smart enough to make ourselves sick.

Digestion is quickly shut down during stress…The parasympathetic nervous system, perfect for all that calm, vegetative physiology, normally mediates the actions of digestion. Along comes stress: turn off parasympathetic, turn on the sympathetic, and forget about digestion.

Most of us don't collapse into puddles of stress-related disease.

...when doing science (or perhaps when doing anything at all in a society as judgmental as our own), be very careful and very certain before pronouncing something to be a norm - because at that instant, you have made it supremely difficult to ever again look objectively at an exception to that supposed norm.

An open mind is a prerequisite to an open heart.

Stress is not a state of mind... it's measurable and dangerous, and humans can't seem to find their off-switch.