I couldn't make it, "Everyone held her breath," or "Everyone held his breath," or "Everyone held his or her breath."
Ich könnte weder "Jeder hielt ihren  Atem an" [3. Pers. Sg. ], noch "Jeder hielt seinen Atem an"  [3. Pers. Sg. ], noch "Jeder hielt seinen oder ihren Atem an" daraus machen.