US, July 27 -- (When we think about air pollution, we usually picture traffic jams, smoke-filled skies, and breathing problems. But scientists are uncovering another side of the story-one that begins long before a child takes its first breath.

Growing evidence suggests that the air an expectant mother breathes may influence her baby's health, making clean air not just an environmental concern but one of the earliest foundations of life itself.)

Every parent wants the same thing-a healthy child. The moment a pregnancy is confirmed, life begins to change. Mothers become more careful about what they eat, how much they rest, and the medicines they take.

Families celebrate every ultrasound, count every passing week, and eagerly wait for th...