Up until now most of us thought that RSI stood for repetitive strain injury which can be contracted by excessive computer use or working of machinery. Now there is repetitive sex injury which has all the same symptoms including pain and numbness.
It is being attributed to the repetitive movements made during sex coupled with the additional weight placed on wrists when in the missionary position. We make active efforts to avoid RSI by doing it doggy style instead. Lol
The result of this can be carpal tunnel syndrome where the nerves are trapped which causes the pain and discomfort. It is claimed that the increase in the syndrome is coupled with the advent of drugs like Viagra.