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Introduction

Chapter 1
Your Body and Mind in the Sun

Chapter 2
The Decline of the Sun in Recent Times

Chapter 3
How Sunlight Can Prevent Serious Health Problems

Chapter 4
Sunlight: A Medicine for Diseases of the Past, Present and Future

Chapter 5
How to Sunbathe Safely, All Year Round

Chapter 6
The Merits of Getting Sunlight into Buildings

Chapter 7
Sunlight and Health in the 21st Century

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Sunlight and Health in the 21st Century

RICHARD HOBDAY




CHAPTER 2:

THE DECLINE OF THE SUN IN RECENT TIMES

Our traditional relationship with the sun has undergone a dramatic change over the last fifty years not least because modern lifestyles allow us to live independently of sunlight. Opportunities to benefit from the biologically active component of sunlight can be limited in the modern world. There are also public health campaigns warning against exposure to the sun because of the increased incidence of skin cancer together with the 'hole' in the ozone layer. Fears about depletion of the Earth's ozone layer causing increases in skin cancers and cataracts appear to be largely ill-founded. Regular moderate sunbathing may actually protect against the most dangerous form of skin cancer - malignant melanoma - rather than cause it. There are, however, concerns that chemical sunscreens may actually cause skin cancers rather than prevent them. Before sunscreens were developed, only tanned skin could withstand strong sunlight for long periods without burning. Sunscreen use encourages people to expose themselves to the sun when they should not be out in it at all.

Chapter 3: How Sunlight Can Prevent Serious Health Problems