2015-01-27, 10:16 PM
Quote:Although a three-week training stint at altitude results in a 7%–10% increase in hemoglobin,7,9 Heinicke and colleagues showed that levels return to normal within two weeks.9
In contrast, cigarette smoking has been associated with persistent increases in hemoglobin. Smoking 10 or more cigarettes per day is associated with an average hemoglobin increase of 3.5% compared with nonsmoking controls.
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