The clocks went back by 1 hour at 2am on Sunday morning.
Daylight Savings Time can seriously disrupt our key bodily functions.
A leading sleep expert says this is due to a change in our circadian rhythms, as well as a lack of daily sunlight.
Research shows people are at greater risk of low moods, cardiovascular trouble, and even being involved in traffic accidents after the clocks change.
Sleep Coach Tom Coleman says long, dark days mess with our body's chemistry:

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