Pregnancy can make it hard to talk, let alone sing, though professionals like Beyoncé make it look effortless. How does pregnancy affect the ability to vocalize?
a) Hormones like estrogen can make vocal cords swell and vibrate differently.
b) Growing babies crowd the lungs and diaphragm, requiring more effort to get sound out.
c) The membranes of the voice box can thicken and grow sluggish,...
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The Weekly Health Quiz: Beyoncé, Sex and Exercise