Paid psychologists up at Harvard are having "pairs" (couples?) shock each other.
Turns out play pain isn't the same as the "real" thing:
Scientists have found that pain hurts more if we think it is meant.
Researchers at Harvard University studied 48 pairs of people.
Researchers at Harvard University studied 48 pairs of people.
Phew! At least that's settled.
I wonder what rule(s) of thumb come out of this study ...?
