Letters from the March 11, 2006, issue of Science News
By Science News
Seasonal effect?
Might your article, “Bright Lights, Big Cancer” (SN: 1/7/06, p. 8), on breast cancer have missed something? If the daily light-dark cycle affects melatonin, is there a seasonal change in cancer rates in the Northern (and Southern) Hemispheres? If so or not, that might give a clue to any latency period.
Alan MacGregor
Salmon Arm, B.C.
Bad fit?
The picture of the new cochlear implant (“Hearing implant knows where it goes,” SN: 1/14/06, p. 29) shows a square piece that is to be implanted deeply into the inner ear. “Square peg in a round hole” was my response. Why doesn’t the probe have a more rounded shape?