As if insomnia wasn't cruel enough a punishment, research from the University of Montreal suggests that the nightly ordeal of the sleepless is also seriously bad for their hearts.
Insomniacs have heightened blood pressure which in turn is linked to long-term damage to the heart. While the blood pressure of good sleepers drops during the night, those poor long-suffering insomniacs have their blood pressure cranked up even higher.
There's nothing more debilitating than that moment when you wake and realise that you're more tired than when you went to sleep. Now the insomniac gets even more bad news.