The full story of how our relationship with light shapes our health, productivity and mood. 'A sparkling and illuminating study, one of those rare books that could genuinely improve your life' Sunday Times 'Life changing' Daily Mail 'Fascinating and readable ... Geddes's lovely book will fill you with longing!' The Times Since the dawn of time, humans have worshipped the sun. And with good reason. Our biology is set up to work in partnership with it. From our sleep cycles to our immune systems and our mental health, access to sunlight is crucial for living a happy and fulfilling life. New research suggests that our sun exposure over a lifetime - even before we were born - may shape our risk of developing a range of different illnesses, from depression to diabetes. Bursting with cutting-edge science and eye-opening advice, Chasing the Sun explores the extraordinary significance of sunlight, from ancient solstice celebrations to modern sleep labs, and from the unexpected health benefits