Fascinating fact

There's a 25% increase in heart attacks on the Monday after we put the clocks forward at the end of March.  Nobody quite knows why, although there are several theories.  Most are connected with the loss of an hour's sleep.  For what it's worth, on the Saturday afternoon, I put all the clocks forward an hour - bar one.  So on Saturday afternoon and evening, I'm already running on summer time.  All I have to remember is which clock is showing the real time!