Published in Women's Health Weekly, July 29th, 2004
The findings don't support those of previous studies suggesting that estrogen metabolism can be affected by exercise and body composition.
"Physical activity has been associated with reduced breast cancer risk, potentially via hormonal pathways, and high urinary excretion of 2-hydroxyestrone (2-OH El) relative to 16alpha-hydroxyestrone (16alpha-OH E-1) also has been associated with reduced breast cancer risk," said C. Atkinson and colleagues at the Fred Hutchinson Cancer Research Center,...
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