A recently published report holds that on the Monday following the return from DST to Standard Time, there is a measurable and statistically significant decrease in heart attacks (at least in Switzerland?).

The report speculates that the added hour of sleep is the most probable causative factor in the observed result.

Conversely, on the switch to Daylight Savings, an increase in heart attacks begins on the following Monday and persists through about Wednesday.

Earlier reports have indicated a significant increase in pedestrian injuries during the first few days following a switch to DST, since drivers need a couple of days to condition themselves to slow down during the earlier "darkness."

Altogether a dangerous and disturbing situation.

John