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Two years ago reporter Anand Jagatia travelled up beyond the Arctic Circle to meet Norwegian researchers in order to answer a question from US listener Kira on why some people function best in the mornings whilst others only come alive at night. In this episode we revisit the topic with the help of science writer and Parentland podcast presenter Linda Geddes, author of Chasing the Sun, a book which explores the science behind the sun’s effects on our bodies and our minds.

The morning sun helps to kick-start our day and our body’s biological cycle – so what happens when it barely rises above the horizon or we live for prolonged periods in artificial environments where the sun never shines? Research has suggested that some communities in northern latitudes are better protected against the mental and physical effects of reduced exposure to sunlight in the winter which might have implications for those suffering the winter blues.

Presenter Anand Jagatia, Producer: Rami Tzabar

(Photo: Woman basking in the sun. Credit: Getty Images)