New Book Presents Simple Scientific Approach for Better Sleep and Reduced Cancer Risk

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Great Sleep! Reduced Cancer! by science researcher Richard Hansler Ph.D. shows how artificial evening light can harm health.

"Great Sleep! Reduced Cancer!" by researcher Richard Hansler tells the story of how scientists discovered that the blue rays from common electric lights suppress melatonin, the sleep and cancer-fighting hormone found in humans.

While many astute readers certainly know that alcohol and drugs can damage health, many might be unaware that a simple thing like turning on an electric light in the evening can also destroy well-being. Research scientist Hansler, the founder of the Lighting Innovations Institute, proves this case in his revolutionary book, "Great Sleep! Reduce Cancer!".

In clear, instructive prose, Hansler explains how the blue rays in ordinary lights block melatonin, the hormone which makes sleeping easier and helps prevent cancer. But there is an easy solution to this problem, Hansler suggests. By using such simple things as blue blocking glasses or non-blue light bulbs, melatonin can be maximized. This increased melatonin has many other benefits as well, including ameliorating bipolar disorder, ADHD, SAD and even postpartum depression.

In promoting this simple idea which has profound consequences, "Great Sleep! Reduced Cancer!" can shed new light on healthier ways of living.

For more information or to request a free review copy, members of the press can contact the author at rhansler @ or at 216-397-1657. "Great Sleep! Reduce Cancer!" is available for sale online at,, and through additional wholesale and retail channels worldwide.

About the Author
Former research physicist for GE lighting for 43 years, Richard Hansler is the founder of the Lighting Innovations Institute at John Carroll University. Along with retired professors, research associates and students, he carries on research and development for GE, NASA, the FAA in addition to his work on light and health.


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