http://www.mumbaimirror.com/nmirror/mmpaper.asp?sectid=7&articleid=72220062322516257222006232124343
Sharing your bed can reduce your brain power – but only if you are a man, say scientists.
When men spend the night in the same bed as someone else their sleep patterns are disturbed, even if they do not make love, new research shows.
And this leads to poorer performance in mental agility tests the next day.
However women do not suffer the same problem.
