The right kind of light can add years to your life. The wrong kind can make you ill - perhaps even kill you.

What do you know about light - and the role it plays in our physical and emotional well-being?

Do you know that hyperactive children may simply be spending too much time indoors under the wrong kind of artificial lighting?

Do you know that some forms of arthritis may be the result of exactly the same condition in adults?

Do you know that wearing pink-tinted glasses might lead to serious health problems?

Do you know that the right kind of sunlight actually cures skin cancer?

THIS IS THE BOOK THAT TELLS YOU WHAT YOU NEED TO KNOW - ABOUT THE HEALTH AND LIGHT.