COVID-19: US nears 247,000, tops 11 million cases
By CNN Staff | November 17, 2020 at 12:54 PM EST – Updated November 17 at 1:02 PM
(CNN) – If you find it hard to breathe through a face mask during exercise, there’s probably no reason to take it off.
The researchers said breathing through a face mask during physical activity can feel harder, but there’s little evidence that masks significantly impact lung function or make any measurable difference for people who are in good health.
They said their conclusion applies pretty much the same to men and women, and to adults of all ages.
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