The clocks are falling back early this year, but new study reveals Daylight Saving Time harms our health — here’s why

A red alarm clock placed on a light gray/green bed.

Twice a year we change our clocks by an hour, with Daylight Saving Time sending the clocks back an hour in spring, and ending when the clocks go forward an hour in the fall to return us to Standard Time.

The idea behind this is that we get to experience more daylight in the summer, as the sun rises and sets an hour later, which means less light in the morning, but more in the evenings.