The Science of Losing an Hour: What Daylight Saving Time Does to the Body

Every spring, the clock moves forward by one hour. It appears minor on paper. Just sixty minutes. And yet, for many people, the shift feels disproportionate to its size. Sleep feels lighter. Mornings feel abrupt. Mood feels slightly unsettled. Concentration dips. The body feels off.

This reaction is not imagined. It is biological.