a english learner

1. The "pregnancy glow." The glow that others notice (though you may not) isn't just a sentimental old wives' term. This facial shine actually has a biological basis. The increased volume of blood causes the cheeks to take on an attractive blush, because of the many blood vessels just below the skin's surface. On top of this redness, the increased secretions of the oil glands give the skin a waxy sheen. The flushed face on many pregnant women is similar to the one non-pregnant people experience when they are excited, cry, or do anything that increases their heart rate (which pregnancy does constantly).