Reflection on Light Links

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"Turning Out the Lights" [March 24-31] leaps logic to arrive at spurious conclusions.

For example, women working night shifts have higher rates of breast cancer, and therefore it's the lights. What about weird hours, being out of sync with family, financial stress that dictated night work? Aren't these far more likely to cause health problems, susceptibility to cancer? Next we read analysis suggests that breast cancer is more common in highly lit communities. Conclusion: It's the lights. How about urban stress, more pollution, more fast food meals—all of which are more common to people who work in the big cities?

Edwin H. Beus

Sandy, Utah