Approximately 8.7 million people in the UK work night shifts, but humans are not meant to be awake at night. “It goes against our natural circadian cycle,” says Steven Lockley, visiting professor at the Surrey Sleep Research Centre,…

Approximately 8.7 million people in the UK work night shifts, but humans are not meant to be awake at night. “It goes against our natural circadian cycle,” says Steven Lockley, visiting professor at the Surrey Sleep Research Centre,…