Daylight Saving Time: What the Evidence Shows
What studies show about sleep loss, heart attacks, road crashes and errors after the clocks change, why countries disagree, and the fight over permanent time.
Risk concentrated after dark and overnight.
What studies show about sleep loss, heart attacks, road crashes and errors after the clocks change, why countries disagree, and the fight over permanent time.
Should you resist a robbery? A study of 27,595 crimes found injury came after resistance in only 10% of cases. What victim surveys show, and their limits.
More than three quarters of US pedestrian deaths happen after dark, and fatal night crashes rose 84% in thirteen years. What the IIHS found about tall, flat vehicle fronts, why night-time autobrake still struggles, and the vision research showing the same reflective material works two to five times better on your ankles than on your chest.
A 60,977-person study found that when you sleep predicts mortality better than how long you sleep — and that the supplement most people buy is the one sleep medicine recommends against. What the cohort data and clinical guidelines actually say.